Home / 1,375,500.64-1,898,327.28-771,891.04

Finding the Fourth Proportional to 1,375,500.64, 1,898,327.28 and 771,891.04

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Solution

The fourth proportional to 1,375,500.64, 1,898,327.28 and 771,891.04 is: 1,065,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,500.64 : 1,898,327.28 = 771,891.04 : x
  2. Step 2: Convert to fraction form
    1,375,500.64/1,898,327.28 = 771,891.04/x
  3. Step 3: Cross multiply
    1,375,500.64x = 1,898,327.28 × 771,891.04
  4. Step 4: Simplify right side
    1,375,500.64x = 1,465,301,818,419.57
  5. Step 5: Solve for x
    x = 1,465,301,818,419.57/1,375,500.64
  6. Step 6: Final answer
    x = 1,065,286.18

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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.