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Finding the Fourth Proportional to 637,286.40, 880,243.20 and 467,251.20

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Solution

The fourth proportional to 637,286.40, 880,243.20 and 467,251.20 is: 645,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,286.40 : 880,243.20 = 467,251.20 : x
  2. Step 2: Convert to fraction form
    637,286.40/880,243.20 = 467,251.20/x
  3. Step 3: Cross multiply
    637,286.40x = 880,243.20 × 467,251.20
  4. Step 4: Simplify right side
    637,286.40x = 411,294,691,491.84
  5. Step 5: Solve for x
    x = 411,294,691,491.84/637,286.40
  6. Step 6: Final answer
    x = 645,384.39

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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.