Home / 486,983.89-672,025.24-272,125.72

Finding the Fourth Proportional to 486,983.89, 672,025.24 and 272,125.72

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Solution

The fourth proportional to 486,983.89, 672,025.24 and 272,125.72 is: 375,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,983.89 : 672,025.24 = 272,125.72 : x
  2. Step 2: Convert to fraction form
    486,983.89/672,025.24 = 272,125.72/x
  3. Step 3: Cross multiply
    486,983.89x = 672,025.24 × 272,125.72
  4. Step 4: Simplify right side
    486,983.89x = 182,875,352,293.17
  5. Step 5: Solve for x
    x = 182,875,352,293.17/486,983.89
  6. Step 6: Final answer
    x = 375,526.49

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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.