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Finding the Fourth Proportional to 539,279.98, 744,200.53 and 297,572.74

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Solution

The fourth proportional to 539,279.98, 744,200.53 and 297,572.74 is: 410,647.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,279.98 : 744,200.53 = 297,572.74 : x
  2. Step 2: Convert to fraction form
    539,279.98/744,200.53 = 297,572.74/x
  3. Step 3: Cross multiply
    539,279.98x = 744,200.53 × 297,572.74
  4. Step 4: Simplify right side
    539,279.98x = 221,453,790,821.55
  5. Step 5: Solve for x
    x = 221,453,790,821.55/539,279.98
  6. Step 6: Final answer
    x = 410,647.16

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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.