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Finding the Fourth Proportional to 577,655.88, 866,403.63 and 178,309.68

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Solution

The fourth proportional to 577,655.88, 866,403.63 and 178,309.68 is: 267,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,655.88 : 866,403.63 = 178,309.68 : x
  2. Step 2: Convert to fraction form
    577,655.88/866,403.63 = 178,309.68/x
  3. Step 3: Cross multiply
    577,655.88x = 866,403.63 × 178,309.68
  4. Step 4: Simplify right side
    577,655.88x = 154,488,154,016.14
  5. Step 5: Solve for x
    x = 154,488,154,016.14/577,655.88
  6. Step 6: Final answer
    x = 267,439.77

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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.