Home / 425,494.46-638,335.02-125,998.40

Finding the Fourth Proportional to 425,494.46, 638,335.02 and 125,998.40

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Solution

The fourth proportional to 425,494.46, 638,335.02 and 125,998.40 is: 189,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,494.46 : 638,335.02 = 125,998.40 : x
  2. Step 2: Convert to fraction form
    425,494.46/638,335.02 = 125,998.40/x
  3. Step 3: Cross multiply
    425,494.46x = 638,335.02 × 125,998.40
  4. Step 4: Simplify right side
    425,494.46x = 80,429,191,183.97
  5. Step 5: Solve for x
    x = 80,429,191,183.97/425,494.46
  6. Step 6: Final answer
    x = 189,025.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.