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Finding the Fourth Proportional to 652,693.32, 979,098.30 and 203,418

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Solution

The fourth proportional to 652,693.32, 979,098.30 and 203,418 is: 305,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,693.32 : 979,098.30 = 203,418 : x
  2. Step 2: Convert to fraction form
    652,693.32/979,098.30 = 203,418/x
  3. Step 3: Cross multiply
    652,693.32x = 979,098.30 × 203,418
  4. Step 4: Simplify right side
    652,693.32x = 199,166,217,989.40
  5. Step 5: Solve for x
    x = 199,166,217,989.40/652,693.32
  6. Step 6: Final answer
    x = 305,145.18

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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.