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Finding the Fourth Proportional to 485,070.22, 664,549.37 and 466,888.90

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Solution

The fourth proportional to 485,070.22, 664,549.37 and 466,888.90 is: 639,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,070.22 : 664,549.37 = 466,888.90 : x
  2. Step 2: Convert to fraction form
    485,070.22/664,549.37 = 466,888.90/x
  3. Step 3: Cross multiply
    485,070.22x = 664,549.37 × 466,888.90
  4. Step 4: Simplify right side
    485,070.22x = 310,270,724,354.99
  5. Step 5: Solve for x
    x = 310,270,724,354.99/485,070.22
  6. Step 6: Final answer
    x = 639,640.84

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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.