Home / 497,432.40-745,630.20-272,446.80

Finding the Fourth Proportional to 497,432.40, 745,630.20 and 272,446.80

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Solution

The fourth proportional to 497,432.40, 745,630.20 and 272,446.80 is: 408,386.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,432.40 : 745,630.20 = 272,446.80 : x
  2. Step 2: Convert to fraction form
    497,432.40/745,630.20 = 272,446.80/x
  3. Step 3: Cross multiply
    497,432.40x = 745,630.20 × 272,446.80
  4. Step 4: Simplify right side
    497,432.40x = 203,144,561,973.36
  5. Step 5: Solve for x
    x = 203,144,561,973.36/497,432.40
  6. Step 6: Final answer
    x = 408,386.27

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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.