Home / 871,864.20-1,308,833.10-493,086.60

Finding the Fourth Proportional to 871,864.20, 1,308,833.10 and 493,086.60

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Solution

The fourth proportional to 871,864.20, 1,308,833.10 and 493,086.60 is: 740,216.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,864.20 : 1,308,833.10 = 493,086.60 : x
  2. Step 2: Convert to fraction form
    871,864.20/1,308,833.10 = 493,086.60/x
  3. Step 3: Cross multiply
    871,864.20x = 1,308,833.10 × 493,086.60
  4. Step 4: Simplify right side
    871,864.20x = 645,368,063,246.46
  5. Step 5: Solve for x
    x = 645,368,063,246.46/871,864.20
  6. Step 6: Final answer
    x = 740,216.27

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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.