Home / 781,346.52-1,171,243.84-443,688.28

Finding the Fourth Proportional to 781,346.52, 1,171,243.84 and 443,688.28

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Solution

The fourth proportional to 781,346.52, 1,171,243.84 and 443,688.28 is: 665,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,346.52 : 1,171,243.84 = 443,688.28 : x
  2. Step 2: Convert to fraction form
    781,346.52/1,171,243.84 = 443,688.28/x
  3. Step 3: Cross multiply
    781,346.52x = 1,171,243.84 × 443,688.28
  4. Step 4: Simplify right side
    781,346.52x = 519,667,164,830.20
  5. Step 5: Solve for x
    x = 519,667,164,830.20/781,346.52
  6. Step 6: Final answer
    x = 665,091.80

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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.