Home / 1,347,047.32-1,858,921.50-743,431

Finding the Fourth Proportional to 1,347,047.32, 1,858,921.50 and 743,431

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Solution

The fourth proportional to 1,347,047.32, 1,858,921.50 and 743,431 is: 1,025,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,047.32 : 1,858,921.50 = 743,431 : x
  2. Step 2: Convert to fraction form
    1,347,047.32/1,858,921.50 = 743,431/x
  3. Step 3: Cross multiply
    1,347,047.32x = 1,858,921.50 × 743,431
  4. Step 4: Simplify right side
    1,347,047.32x = 1,381,979,869,666.50
  5. Step 5: Solve for x
    x = 1,381,979,869,666.50/1,347,047.32
  6. Step 6: Final answer
    x = 1,025,932.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.