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Finding the Fourth Proportional to 539,888.88, 745,052.28 and 298,177.59

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Solution

The fourth proportional to 539,888.88, 745,052.28 and 298,177.59 is: 411,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,888.88 : 745,052.28 = 298,177.59 : x
  2. Step 2: Convert to fraction form
    539,888.88/745,052.28 = 298,177.59/x
  3. Step 3: Cross multiply
    539,888.88x = 745,052.28 × 298,177.59
  4. Step 4: Simplify right side
    539,888.88x = 222,157,893,274.41
  5. Step 5: Solve for x
    x = 222,157,893,274.41/539,888.88
  6. Step 6: Final answer
    x = 411,488.18

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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.