Home / 672,365.19-927,962.79-442,885.71

Finding the Fourth Proportional to 672,365.19, 927,962.79 and 442,885.71

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Solution

The fourth proportional to 672,365.19, 927,962.79 and 442,885.71 is: 611,247.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,365.19 : 927,962.79 = 442,885.71 : x
  2. Step 2: Convert to fraction form
    672,365.19/927,962.79 = 442,885.71/x
  3. Step 3: Cross multiply
    672,365.19x = 927,962.79 × 442,885.71
  4. Step 4: Simplify right side
    672,365.19x = 410,981,459,102.73
  5. Step 5: Solve for x
    x = 410,981,459,102.73/672,365.19
  6. Step 6: Final answer
    x = 611,247.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.