Home / 787,152.19-1,086,077.28-442,921

Finding the Fourth Proportional to 787,152.19, 1,086,077.28 and 442,921

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Solution

The fourth proportional to 787,152.19, 1,086,077.28 and 442,921 is: 611,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,152.19 : 1,086,077.28 = 442,921 : x
  2. Step 2: Convert to fraction form
    787,152.19/1,086,077.28 = 442,921/x
  3. Step 3: Cross multiply
    787,152.19x = 1,086,077.28 × 442,921
  4. Step 4: Simplify right side
    787,152.19x = 481,046,434,934.88
  5. Step 5: Solve for x
    x = 481,046,434,934.88/787,152.19
  6. Step 6: Final answer
    x = 611,122.53

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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.