Home / 1,218,651.64-1,681,718.71-674,775.75

Finding the Fourth Proportional to 1,218,651.64, 1,681,718.71 and 674,775.75

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Solution

The fourth proportional to 1,218,651.64, 1,681,718.71 and 674,775.75 is: 931,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,651.64 : 1,681,718.71 = 674,775.75 : x
  2. Step 2: Convert to fraction form
    1,218,651.64/1,681,718.71 = 674,775.75/x
  3. Step 3: Cross multiply
    1,218,651.64x = 1,681,718.71 × 674,775.75
  4. Step 4: Simplify right side
    1,218,651.64x = 1,134,783,002,142.34
  5. Step 5: Solve for x
    x = 1,134,783,002,142.34/1,218,651.64
  6. Step 6: Final answer
    x = 931,179.16

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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.