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Finding the Fourth Proportional to 574,363.05, 861,544.71 and 258,450.90

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Solution

The fourth proportional to 574,363.05, 861,544.71 and 258,450.90 is: 387,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,363.05 : 861,544.71 = 258,450.90 : x
  2. Step 2: Convert to fraction form
    574,363.05/861,544.71 = 258,450.90/x
  3. Step 3: Cross multiply
    574,363.05x = 861,544.71 × 258,450.90
  4. Step 4: Simplify right side
    574,363.05x = 222,667,005,689.74
  5. Step 5: Solve for x
    x = 222,667,005,689.74/574,363.05
  6. Step 6: Final answer
    x = 387,676.41

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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.