Home / 673,750.40-1,010,625.60-319,456.40

Finding the Fourth Proportional to 673,750.40, 1,010,625.60 and 319,456.40

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Solution

The fourth proportional to 673,750.40, 1,010,625.60 and 319,456.40 is: 479,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,750.40 : 1,010,625.60 = 319,456.40 : x
  2. Step 2: Convert to fraction form
    673,750.40/1,010,625.60 = 319,456.40/x
  3. Step 3: Cross multiply
    673,750.40x = 1,010,625.60 × 319,456.40
  4. Step 4: Simplify right side
    673,750.40x = 322,850,815,923.84
  5. Step 5: Solve for x
    x = 322,850,815,923.84/673,750.40
  6. Step 6: Final answer
    x = 479,184.60

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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.