Home / 1,438,719.34-1,985,432.80-794,139.70

Finding the Fourth Proportional to 1,438,719.34, 1,985,432.80 and 794,139.70

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Solution

The fourth proportional to 1,438,719.34, 1,985,432.80 and 794,139.70 is: 1,095,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,719.34 : 1,985,432.80 = 794,139.70 : x
  2. Step 2: Convert to fraction form
    1,438,719.34/1,985,432.80 = 794,139.70/x
  3. Step 3: Cross multiply
    1,438,719.34x = 1,985,432.80 × 794,139.70
  4. Step 4: Simplify right side
    1,438,719.34x = 1,576,711,008,162.16
  5. Step 5: Solve for x
    x = 1,576,711,008,162.16/1,438,719.34
  6. Step 6: Final answer
    x = 1,095,912.85

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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.