Home / 767,756.95-1,151,635.29-412,281.97

Finding the Fourth Proportional to 767,756.95, 1,151,635.29 and 412,281.97

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Solution

The fourth proportional to 767,756.95, 1,151,635.29 and 412,281.97 is: 618,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,756.95 : 1,151,635.29 = 412,281.97 : x
  2. Step 2: Convert to fraction form
    767,756.95/1,151,635.29 = 412,281.97/x
  3. Step 3: Cross multiply
    767,756.95x = 1,151,635.29 × 412,281.97
  4. Step 4: Simplify right side
    767,756.95x = 474,798,466,082.72
  5. Step 5: Solve for x
    x = 474,798,466,082.72/767,756.95
  6. Step 6: Final answer
    x = 618,422.88

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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.