Home / 842,732.16-1,162,685.49-479,898.78

Finding the Fourth Proportional to 842,732.16, 1,162,685.49 and 479,898.78

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Solution

The fourth proportional to 842,732.16, 1,162,685.49 and 479,898.78 is: 662,098.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,732.16 : 1,162,685.49 = 479,898.78 : x
  2. Step 2: Convert to fraction form
    842,732.16/1,162,685.49 = 479,898.78/x
  3. Step 3: Cross multiply
    842,732.16x = 1,162,685.49 × 479,898.78
  4. Step 4: Simplify right side
    842,732.16x = 557,971,348,174.70
  5. Step 5: Solve for x
    x = 557,971,348,174.70/842,732.16
  6. Step 6: Final answer
    x = 662,098.08

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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.