Home / 728,627.48-1,005,503.94-406,337.92

Finding the Fourth Proportional to 728,627.48, 1,005,503.94 and 406,337.92

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Solution

The fourth proportional to 728,627.48, 1,005,503.94 and 406,337.92 is: 560,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,627.48 : 1,005,503.94 = 406,337.92 : x
  2. Step 2: Convert to fraction form
    728,627.48/1,005,503.94 = 406,337.92/x
  3. Step 3: Cross multiply
    728,627.48x = 1,005,503.94 × 406,337.92
  4. Step 4: Simplify right side
    728,627.48x = 408,574,379,531.41
  5. Step 5: Solve for x
    x = 408,574,379,531.41/728,627.48
  6. Step 6: Final answer
    x = 560,745.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.