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Finding the Fourth Proportional to 539,647.34, 744,714.28 and 297,930.32

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Solution

The fourth proportional to 539,647.34, 744,714.28 and 297,930.32 is: 411,144.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,647.34 : 744,714.28 = 297,930.32 : x
  2. Step 2: Convert to fraction form
    539,647.34/744,714.28 = 297,930.32/x
  3. Step 3: Cross multiply
    539,647.34x = 744,714.28 × 297,930.32
  4. Step 4: Simplify right side
    539,647.34x = 221,872,963,748.97
  5. Step 5: Solve for x
    x = 221,872,963,748.97/539,647.34
  6. Step 6: Final answer
    x = 411,144.37

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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.