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Finding the Fourth Proportional to 576,375.81, 862,792.11 and 491,345.25

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Solution

The fourth proportional to 576,375.81, 862,792.11 and 491,345.25 is: 735,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,375.81 : 862,792.11 = 491,345.25 : x
  2. Step 2: Convert to fraction form
    576,375.81/862,792.11 = 491,345.25/x
  3. Step 3: Cross multiply
    576,375.81x = 862,792.11 × 491,345.25
  4. Step 4: Simplify right side
    576,375.81x = 423,928,804,985.98
  5. Step 5: Solve for x
    x = 423,928,804,985.98/576,375.81
  6. Step 6: Final answer
    x = 735,507.63

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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.