Home / 497,027.10-745,540.65-319,734.30

Finding the Fourth Proportional to 497,027.10, 745,540.65 and 319,734.30

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Solution

The fourth proportional to 497,027.10, 745,540.65 and 319,734.30 is: 479,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,027.10 : 745,540.65 = 319,734.30 : x
  2. Step 2: Convert to fraction form
    497,027.10/745,540.65 = 319,734.30/x
  3. Step 3: Cross multiply
    497,027.10x = 745,540.65 × 319,734.30
  4. Step 4: Simplify right side
    497,027.10x = 238,374,917,849.30
  5. Step 5: Solve for x
    x = 238,374,917,849.30/497,027.10
  6. Step 6: Final answer
    x = 479,601.45

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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.