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Finding the Fourth Proportional to 610,633.60, 842,644.56 and 338,677.40

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Solution

The fourth proportional to 610,633.60, 842,644.56 and 338,677.40 is: 467,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,633.60 : 842,644.56 = 338,677.40 : x
  2. Step 2: Convert to fraction form
    610,633.60/842,644.56 = 338,677.40/x
  3. Step 3: Cross multiply
    610,633.60x = 842,644.56 × 338,677.40
  4. Step 4: Simplify right side
    610,633.60x = 285,384,668,704.94
  5. Step 5: Solve for x
    x = 285,384,668,704.94/610,633.60
  6. Step 6: Final answer
    x = 467,358.28

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1.5x scale

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.