Home / 1,218,687.46-1,681,785.70-702,437.15

Finding the Fourth Proportional to 1,218,687.46, 1,681,785.70 and 702,437.15

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Solution

The fourth proportional to 1,218,687.46, 1,681,785.70 and 702,437.15 is: 969,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,687.46 : 1,681,785.70 = 702,437.15 : x
  2. Step 2: Convert to fraction form
    1,218,687.46/1,681,785.70 = 702,437.15/x
  3. Step 3: Cross multiply
    1,218,687.46x = 1,681,785.70 × 702,437.15
  4. Step 4: Simplify right side
    1,218,687.46x = 1,181,348,754,018.76
  5. Step 5: Solve for x
    x = 1,181,348,754,018.76/1,218,687.46
  6. Step 6: Final answer
    x = 969,361.54

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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.