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Finding the Fourth Proportional to 497,413.20, 744,532.20 and 392,437.20

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Solution

The fourth proportional to 497,413.20, 744,532.20 and 392,437.20 is: 587,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,413.20 : 744,532.20 = 392,437.20 : x
  2. Step 2: Convert to fraction form
    497,413.20/744,532.20 = 392,437.20/x
  3. Step 3: Cross multiply
    497,413.20x = 744,532.20 × 392,437.20
  4. Step 4: Simplify right side
    497,413.20x = 292,182,131,877.84
  5. Step 5: Solve for x
    x = 292,182,131,877.84/497,413.20
  6. Step 6: Final answer
    x = 587,403.25

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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.