Home / 890,634.10-1,335,951.15-859,141.30

Finding the Fourth Proportional to 890,634.10, 1,335,951.15 and 859,141.30

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Solution

The fourth proportional to 890,634.10, 1,335,951.15 and 859,141.30 is: 1,288,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,634.10 : 1,335,951.15 = 859,141.30 : x
  2. Step 2: Convert to fraction form
    890,634.10/1,335,951.15 = 859,141.30/x
  3. Step 3: Cross multiply
    890,634.10x = 1,335,951.15 × 859,141.30
  4. Step 4: Simplify right side
    890,634.10x = 1,147,770,807,747.49
  5. Step 5: Solve for x
    x = 1,147,770,807,747.49/890,634.10
  6. Step 6: Final answer
    x = 1,288,711.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.