Home / 485,108.92-669,421.15-270,210.66

Finding the Fourth Proportional to 485,108.92, 669,421.15 and 270,210.66

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Solution

The fourth proportional to 485,108.92, 669,421.15 and 270,210.66 is: 372,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,108.92 : 669,421.15 = 270,210.66 : x
  2. Step 2: Convert to fraction form
    485,108.92/669,421.15 = 270,210.66/x
  3. Step 3: Cross multiply
    485,108.92x = 669,421.15 × 270,210.66
  4. Step 4: Simplify right side
    485,108.92x = 180,884,730,759.46
  5. Step 5: Solve for x
    x = 180,884,730,759.46/485,108.92
  6. Step 6: Final answer
    x = 372,874.47

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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.