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Finding the Fourth Proportional to 528,440.68, 792,731.58 and 154,458.28

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Solution

The fourth proportional to 528,440.68, 792,731.58 and 154,458.28 is: 231,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,440.68 : 792,731.58 = 154,458.28 : x
  2. Step 2: Convert to fraction form
    528,440.68/792,731.58 = 154,458.28/x
  3. Step 3: Cross multiply
    528,440.68x = 792,731.58 × 154,458.28
  4. Step 4: Simplify right side
    528,440.68x = 122,443,956,348.48
  5. Step 5: Solve for x
    x = 122,443,956,348.48/528,440.68
  6. Step 6: Final answer
    x = 231,708.04

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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.