Home / 673,811.40-1,010,717.10-319,517.40

Finding the Fourth Proportional to 673,811.40, 1,010,717.10 and 319,517.40

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Solution

The fourth proportional to 673,811.40, 1,010,717.10 and 319,517.40 is: 479,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,811.40 : 1,010,717.10 = 319,517.40 : x
  2. Step 2: Convert to fraction form
    673,811.40/1,010,717.10 = 319,517.40/x
  3. Step 3: Cross multiply
    673,811.40x = 1,010,717.10 × 319,517.40
  4. Step 4: Simplify right side
    673,811.40x = 322,941,699,927.54
  5. Step 5: Solve for x
    x = 322,941,699,927.54/673,811.40
  6. Step 6: Final answer
    x = 479,276.10

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Double scale
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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.