Home / 673,966.90-1,010,950.35-319,672.90

Finding the Fourth Proportional to 673,966.90, 1,010,950.35 and 319,672.90

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Solution

The fourth proportional to 673,966.90, 1,010,950.35 and 319,672.90 is: 479,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,966.90 : 1,010,950.35 = 319,672.90 : x
  2. Step 2: Convert to fraction form
    673,966.90/1,010,950.35 = 319,672.90/x
  3. Step 3: Cross multiply
    673,966.90x = 1,010,950.35 × 319,672.90
  4. Step 4: Simplify right side
    673,966.90x = 323,173,430,140.52
  5. Step 5: Solve for x
    x = 323,173,430,140.52/673,966.90
  6. Step 6: Final answer
    x = 479,509.35

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Half scale
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Double scale
Find fourth proportional to 673,967.90, 1,010,951.85 and 319,673.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.