Home / 498,301.08-687,645.90-271,948.20

Finding the Fourth Proportional to 498,301.08, 687,645.90 and 271,948.20

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Solution

The fourth proportional to 498,301.08, 687,645.90 and 271,948.20 is: 375,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,301.08 : 687,645.90 = 271,948.20 : x
  2. Step 2: Convert to fraction form
    498,301.08/687,645.90 = 271,948.20/x
  3. Step 3: Cross multiply
    498,301.08x = 687,645.90 × 271,948.20
  4. Step 4: Simplify right side
    498,301.08x = 187,004,064,742.38
  5. Step 5: Solve for x
    x = 187,004,064,742.38/498,301.08
  6. Step 6: Final answer
    x = 375,283.28

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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.