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Finding the Fourth Proportional to 381,601.80, 572,402.70 and 344,860.20

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Solution

The fourth proportional to 381,601.80, 572,402.70 and 344,860.20 is: 517,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,601.80 : 572,402.70 = 344,860.20 : x
  2. Step 2: Convert to fraction form
    381,601.80/572,402.70 = 344,860.20/x
  3. Step 3: Cross multiply
    381,601.80x = 572,402.70 × 344,860.20
  4. Step 4: Simplify right side
    381,601.80x = 197,398,909,602.54
  5. Step 5: Solve for x
    x = 197,398,909,602.54/381,601.80
  6. Step 6: Final answer
    x = 517,290.30

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1.5x scale

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.