Home / 738,651.06-1,107,654.78-392,358.74

Finding the Fourth Proportional to 738,651.06, 1,107,654.78 and 392,358.74

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Solution

The fourth proportional to 738,651.06, 1,107,654.78 and 392,358.74 is: 588,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,651.06 : 1,107,654.78 = 392,358.74 : x
  2. Step 2: Convert to fraction form
    738,651.06/1,107,654.78 = 392,358.74/x
  3. Step 3: Cross multiply
    738,651.06x = 1,107,654.78 × 392,358.74
  4. Step 4: Simplify right side
    738,651.06x = 434,598,033,835.78
  5. Step 5: Solve for x
    x = 434,598,033,835.78/738,651.06
  6. Step 6: Final answer
    x = 588,367.17

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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.