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Finding the Fourth Proportional to 576,003.60, 862,903.80 and 309,675.60

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Solution

The fourth proportional to 576,003.60, 862,903.80 and 309,675.60 is: 463,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,003.60 : 862,903.80 = 309,675.60 : x
  2. Step 2: Convert to fraction form
    576,003.60/862,903.80 = 309,675.60/x
  3. Step 3: Cross multiply
    576,003.60x = 862,903.80 × 309,675.60
  4. Step 4: Simplify right side
    576,003.60x = 267,220,252,007.28
  5. Step 5: Solve for x
    x = 267,220,252,007.28/576,003.60
  6. Step 6: Final answer
    x = 463,921.15

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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.