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Finding the Fourth Proportional to 486,500.01, 671,000.53 and 418,630.71

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Solution

The fourth proportional to 486,500.01, 671,000.53 and 418,630.71 is: 577,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,500.01 : 671,000.53 = 418,630.71 : x
  2. Step 2: Convert to fraction form
    486,500.01/671,000.53 = 418,630.71/x
  3. Step 3: Cross multiply
    486,500.01x = 671,000.53 × 418,630.71
  4. Step 4: Simplify right side
    486,500.01x = 280,901,428,284.28
  5. Step 5: Solve for x
    x = 280,901,428,284.28/486,500.01
  6. Step 6: Final answer
    x = 577,392.44

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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.