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Finding the Fourth Proportional to 656,951.52, 906,594.48 and 355,146.72

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Solution

The fourth proportional to 656,951.52, 906,594.48 and 355,146.72 is: 490,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,951.52 : 906,594.48 = 355,146.72 : x
  2. Step 2: Convert to fraction form
    656,951.52/906,594.48 = 355,146.72/x
  3. Step 3: Cross multiply
    656,951.52x = 906,594.48 × 355,146.72
  4. Step 4: Simplify right side
    656,951.52x = 321,974,055,942.11
  5. Step 5: Solve for x
    x = 321,974,055,942.11/656,951.52
  6. Step 6: Final answer
    x = 490,103.22

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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.