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Finding the Fourth Proportional to 870,833.16, 1,306,754.28 and 365,349.42

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Solution

The fourth proportional to 870,833.16, 1,306,754.28 and 365,349.42 is: 548,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,833.16 : 1,306,754.28 = 365,349.42 : x
  2. Step 2: Convert to fraction form
    870,833.16/1,306,754.28 = 365,349.42/x
  3. Step 3: Cross multiply
    870,833.16x = 1,306,754.28 × 365,349.42
  4. Step 4: Simplify right side
    870,833.16x = 477,421,918,280.52
  5. Step 5: Solve for x
    x = 477,421,918,280.52/870,833.16
  6. Step 6: Final answer
    x = 548,235.80

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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.