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Finding the Fourth Proportional to 665,395.56, 918,248.22 and 363,589.56

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Solution

The fourth proportional to 665,395.56, 918,248.22 and 363,589.56 is: 501,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,395.56 : 918,248.22 = 363,589.56 : x
  2. Step 2: Convert to fraction form
    665,395.56/918,248.22 = 363,589.56/x
  3. Step 3: Cross multiply
    665,395.56x = 918,248.22 × 363,589.56
  4. Step 4: Simplify right side
    665,395.56x = 333,865,466,280.58
  5. Step 5: Solve for x
    x = 333,865,466,280.58/665,395.56
  6. Step 6: Final answer
    x = 501,754.88

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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.