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Finding the Fourth Proportional to 586,761.60, 880,142.40 and 143,529.60

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Solution

The fourth proportional to 586,761.60, 880,142.40 and 143,529.60 is: 215,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,761.60 : 880,142.40 = 143,529.60 : x
  2. Step 2: Convert to fraction form
    586,761.60/880,142.40 = 143,529.60/x
  3. Step 3: Cross multiply
    586,761.60x = 880,142.40 × 143,529.60
  4. Step 4: Simplify right side
    586,761.60x = 126,326,486,615.04
  5. Step 5: Solve for x
    x = 126,326,486,615.04/586,761.60
  6. Step 6: Final answer
    x = 215,294.40

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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.