Home / 1,438,870-1,985,672.28-794,288.56

Finding the Fourth Proportional to 1,438,870, 1,985,672.28 and 794,288.56

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Solution

The fourth proportional to 1,438,870, 1,985,672.28 and 794,288.56 is: 1,096,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,870 : 1,985,672.28 = 794,288.56 : x
  2. Step 2: Convert to fraction form
    1,438,870/1,985,672.28 = 794,288.56/x
  3. Step 3: Cross multiply
    1,438,870x = 1,985,672.28 × 794,288.56
  4. Step 4: Simplify right side
    1,438,870x = 1,577,196,775,913.12
  5. Step 5: Solve for x
    x = 1,577,196,775,913.12/1,438,870
  6. Step 6: Final answer
    x = 1,096,135.70

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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.