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Finding the Fourth Proportional to 498,012.02, 687,248.46 and 283,147.46

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Solution

The fourth proportional to 498,012.02, 687,248.46 and 283,147.46 is: 390,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,012.02 : 687,248.46 = 283,147.46 : x
  2. Step 2: Convert to fraction form
    498,012.02/687,248.46 = 283,147.46/x
  3. Step 3: Cross multiply
    498,012.02x = 687,248.46 × 283,147.46
  4. Step 4: Simplify right side
    498,012.02x = 194,592,655,837.91
  5. Step 5: Solve for x
    x = 194,592,655,837.91/498,012.02
  6. Step 6: Final answer
    x = 390,738.87

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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.