Home / 916,947.30-1,372,310.55-804,972.90

Finding the Fourth Proportional to 916,947.30, 1,372,310.55 and 804,972.90

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Solution

The fourth proportional to 916,947.30, 1,372,310.55 and 804,972.90 is: 1,204,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,947.30 : 1,372,310.55 = 804,972.90 : x
  2. Step 2: Convert to fraction form
    916,947.30/1,372,310.55 = 804,972.90/x
  3. Step 3: Cross multiply
    916,947.30x = 1,372,310.55 × 804,972.90
  4. Step 4: Simplify right side
    916,947.30x = 1,104,672,803,134.10
  5. Step 5: Solve for x
    x = 1,104,672,803,134.10/916,947.30
  6. Step 6: Final answer
    x = 1,204,728.78

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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.