Home / 724,654.71-1,087,020-219,202.74

Finding the Fourth Proportional to 724,654.71, 1,087,020 and 219,202.74

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Solution

The fourth proportional to 724,654.71, 1,087,020 and 219,202.74 is: 328,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,654.71 : 1,087,020 = 219,202.74 : x
  2. Step 2: Convert to fraction form
    724,654.71/1,087,020 = 219,202.74/x
  3. Step 3: Cross multiply
    724,654.71x = 1,087,020 × 219,202.74
  4. Step 4: Simplify right side
    724,654.71x = 238,277,762,434.80
  5. Step 5: Solve for x
    x = 238,277,762,434.80/724,654.71
  6. Step 6: Final answer
    x = 328,815.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.