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Finding the Fourth Proportional to 577,887.40, 866,833.80 and 203,910.40

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Solution

The fourth proportional to 577,887.40, 866,833.80 and 203,910.40 is: 305,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,887.40 : 866,833.80 = 203,910.40 : x
  2. Step 2: Convert to fraction form
    577,887.40/866,833.80 = 203,910.40/x
  3. Step 3: Cross multiply
    577,887.40x = 866,833.80 × 203,910.40
  4. Step 4: Simplify right side
    577,887.40x = 176,756,426,891.52
  5. Step 5: Solve for x
    x = 176,756,426,891.52/577,887.40
  6. Step 6: Final answer
    x = 305,866.55

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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.