Home / 1,432,279.50-1,976,595.39-787,748.46

Finding the Fourth Proportional to 1,432,279.50, 1,976,595.39 and 787,748.46

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Solution

The fourth proportional to 1,432,279.50, 1,976,595.39 and 787,748.46 is: 1,087,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,279.50 : 1,976,595.39 = 787,748.46 : x
  2. Step 2: Convert to fraction form
    1,432,279.50/1,976,595.39 = 787,748.46/x
  3. Step 3: Cross multiply
    1,432,279.50x = 1,976,595.39 × 787,748.46
  4. Step 4: Simplify right side
    1,432,279.50x = 1,557,059,974,515.60
  5. Step 5: Solve for x
    x = 1,557,059,974,515.60/1,432,279.50
  6. Step 6: Final answer
    x = 1,087,120.20

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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.