Home / 1,327,631.40-1,991,447.10-907,727.40

Finding the Fourth Proportional to 1,327,631.40, 1,991,447.10 and 907,727.40

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Solution

The fourth proportional to 1,327,631.40, 1,991,447.10 and 907,727.40 is: 1,361,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,631.40 : 1,991,447.10 = 907,727.40 : x
  2. Step 2: Convert to fraction form
    1,327,631.40/1,991,447.10 = 907,727.40/x
  3. Step 3: Cross multiply
    1,327,631.40x = 1,991,447.10 × 907,727.40
  4. Step 4: Simplify right side
    1,327,631.40x = 1,807,691,098,320.54
  5. Step 5: Solve for x
    x = 1,807,691,098,320.54/1,327,631.40
  6. Step 6: Final answer
    x = 1,361,591.10

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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.