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Finding the Fourth Proportional to 524,842.98, 724,017.78 and 306,909.15

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Solution

The fourth proportional to 524,842.98, 724,017.78 and 306,909.15 is: 423,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,842.98 : 724,017.78 = 306,909.15 : x
  2. Step 2: Convert to fraction form
    524,842.98/724,017.78 = 306,909.15/x
  3. Step 3: Cross multiply
    524,842.98x = 724,017.78 × 306,909.15
  4. Step 4: Simplify right side
    524,842.98x = 222,207,681,444.69
  5. Step 5: Solve for x
    x = 222,207,681,444.69/524,842.98
  6. Step 6: Final answer
    x = 423,379.35

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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.