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Finding the Fourth Proportional to 842,264, 1,263,036.36 and 487,522.88

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Solution

The fourth proportional to 842,264, 1,263,036.36 and 487,522.88 is: 731,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,264 : 1,263,036.36 = 487,522.88 : x
  2. Step 2: Convert to fraction form
    842,264/1,263,036.36 = 487,522.88/x
  3. Step 3: Cross multiply
    842,264x = 1,263,036.36 × 487,522.88
  4. Step 4: Simplify right side
    842,264x = 615,759,123,771.92
  5. Step 5: Solve for x
    x = 615,759,123,771.92/842,264
  6. Step 6: Final answer
    x = 731,076.15

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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.