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Finding the Fourth Proportional to 610,121.44, 842,008.12 and 338,200.79

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Solution

The fourth proportional to 610,121.44, 842,008.12 and 338,200.79 is: 466,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,121.44 : 842,008.12 = 338,200.79 : x
  2. Step 2: Convert to fraction form
    610,121.44/842,008.12 = 338,200.79/x
  3. Step 3: Cross multiply
    610,121.44x = 842,008.12 × 338,200.79
  4. Step 4: Simplify right side
    610,121.44x = 284,767,812,629.93
  5. Step 5: Solve for x
    x = 284,767,812,629.93/610,121.44
  6. Step 6: Final answer
    x = 466,739.56

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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.