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Finding the Fourth Proportional to 867,294.56, 1,300,650 and 290,801.12

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Solution

The fourth proportional to 867,294.56, 1,300,650 and 290,801.12 is: 436,103.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,294.56 : 1,300,650 = 290,801.12 : x
  2. Step 2: Convert to fraction form
    867,294.56/1,300,650 = 290,801.12/x
  3. Step 3: Cross multiply
    867,294.56x = 1,300,650 × 290,801.12
  4. Step 4: Simplify right side
    867,294.56x = 378,230,476,728
  5. Step 5: Solve for x
    x = 378,230,476,728/867,294.56
  6. Step 6: Final answer
    x = 436,103.83

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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.