Home / 1,218,318.68-1,681,259.62-674,443.28

Finding the Fourth Proportional to 1,218,318.68, 1,681,259.62 and 674,443.28

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Solution

The fourth proportional to 1,218,318.68, 1,681,259.62 and 674,443.28 is: 930,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,318.68 : 1,681,259.62 = 674,443.28 : x
  2. Step 2: Convert to fraction form
    1,218,318.68/1,681,259.62 = 674,443.28/x
  3. Step 3: Cross multiply
    1,218,318.68x = 1,681,259.62 × 674,443.28
  4. Step 4: Simplify right side
    1,218,318.68x = 1,133,914,252,644.35
  5. Step 5: Solve for x
    x = 1,133,914,252,644.35/1,218,318.68
  6. Step 6: Final answer
    x = 930,720.57

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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.