Home / 684,180.68-944,319.20-397,865.92

Finding the Fourth Proportional to 684,180.68, 944,319.20 and 397,865.92

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Solution

The fourth proportional to 684,180.68, 944,319.20 and 397,865.92 is: 549,142.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,180.68 : 944,319.20 = 397,865.92 : x
  2. Step 2: Convert to fraction form
    684,180.68/944,319.20 = 397,865.92/x
  3. Step 3: Cross multiply
    684,180.68x = 944,319.20 × 397,865.92
  4. Step 4: Simplify right side
    684,180.68x = 375,712,427,281.66
  5. Step 5: Solve for x
    x = 375,712,427,281.66/684,180.68
  6. Step 6: Final answer
    x = 549,142.12

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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.