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Finding the Fourth Proportional to 539,900.47, 745,068.68 and 298,177.44

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Solution

The fourth proportional to 539,900.47, 745,068.68 and 298,177.44 is: 411,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,900.47 : 745,068.68 = 298,177.44 : x
  2. Step 2: Convert to fraction form
    539,900.47/745,068.68 = 298,177.44/x
  3. Step 3: Cross multiply
    539,900.47x = 745,068.68 × 298,177.44
  4. Step 4: Simplify right side
    539,900.47x = 222,162,671,626.58
  5. Step 5: Solve for x
    x = 222,162,671,626.58/539,900.47
  6. Step 6: Final answer
    x = 411,488.20

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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.