Home / 1,078,478.28-1,488,034.67-659,268.18

Finding the Fourth Proportional to 1,078,478.28, 1,488,034.67 and 659,268.18

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Solution

The fourth proportional to 1,078,478.28, 1,488,034.67 and 659,268.18 is: 909,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,478.28 : 1,488,034.67 = 659,268.18 : x
  2. Step 2: Convert to fraction form
    1,078,478.28/1,488,034.67 = 659,268.18/x
  3. Step 3: Cross multiply
    1,078,478.28x = 1,488,034.67 × 659,268.18
  4. Step 4: Simplify right side
    1,078,478.28x = 981,013,905,371.46
  5. Step 5: Solve for x
    x = 981,013,905,371.46/1,078,478.28
  6. Step 6: Final answer
    x = 909,627.87

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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.