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Finding the Fourth Proportional to 485,087.29, 664,572.82 and 466,905.91

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Solution

The fourth proportional to 485,087.29, 664,572.82 and 466,905.91 is: 639,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,087.29 : 664,572.82 = 466,905.91 : x
  2. Step 2: Convert to fraction form
    485,087.29/664,572.82 = 466,905.91/x
  3. Step 3: Cross multiply
    485,087.29x = 664,572.82 × 466,905.91
  4. Step 4: Simplify right side
    485,087.29x = 310,292,977,283.37
  5. Step 5: Solve for x
    x = 310,292,977,283.37/485,087.29
  6. Step 6: Final answer
    x = 639,664.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.