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Finding the Fourth Proportional to 869,553.70, 1,304,330.55 and 801,124.90

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Solution

The fourth proportional to 869,553.70, 1,304,330.55 and 801,124.90 is: 1,201,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,553.70 : 1,304,330.55 = 801,124.90 : x
  2. Step 2: Convert to fraction form
    869,553.70/1,304,330.55 = 801,124.90/x
  3. Step 3: Cross multiply
    869,553.70x = 1,304,330.55 × 801,124.90
  4. Step 4: Simplify right side
    869,553.70x = 1,044,931,681,435.70
  5. Step 5: Solve for x
    x = 1,044,931,681,435.70/869,553.70
  6. Step 6: Final answer
    x = 1,201,687.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.