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Finding the Fourth Proportional to 865,244.80, 1,194,030.80 and 478,059

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Solution

The fourth proportional to 865,244.80, 1,194,030.80 and 478,059 is: 659,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,244.80 : 1,194,030.80 = 478,059 : x
  2. Step 2: Convert to fraction form
    865,244.80/1,194,030.80 = 478,059/x
  3. Step 3: Cross multiply
    865,244.80x = 1,194,030.80 × 478,059
  4. Step 4: Simplify right side
    865,244.80x = 570,817,170,217.20
  5. Step 5: Solve for x
    x = 570,817,170,217.20/865,244.80
  6. Step 6: Final answer
    x = 659,717.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.