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Finding the Fourth Proportional to 703,765.61, 1,055,633.65 and 171,289.61

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Solution

The fourth proportional to 703,765.61, 1,055,633.65 and 171,289.61 is: 256,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,765.61 : 1,055,633.65 = 171,289.61 : x
  2. Step 2: Convert to fraction form
    703,765.61/1,055,633.65 = 171,289.61/x
  3. Step 3: Cross multiply
    703,765.61x = 1,055,633.65 × 171,289.61
  4. Step 4: Simplify right side
    703,765.61x = 180,819,076,211.38
  5. Step 5: Solve for x
    x = 180,819,076,211.38/703,765.61
  6. Step 6: Final answer
    x = 256,930.82

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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.