Home / 754,560.55-1,040,765.92-512,422.39

Finding the Fourth Proportional to 754,560.55, 1,040,765.92 and 512,422.39

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Solution

The fourth proportional to 754,560.55, 1,040,765.92 and 512,422.39 is: 706,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,560.55 : 1,040,765.92 = 512,422.39 : x
  2. Step 2: Convert to fraction form
    754,560.55/1,040,765.92 = 512,422.39/x
  3. Step 3: Cross multiply
    754,560.55x = 1,040,765.92 × 512,422.39
  4. Step 4: Simplify right side
    754,560.55x = 533,311,760,156.95
  5. Step 5: Solve for x
    x = 533,311,760,156.95/754,560.55
  6. Step 6: Final answer
    x = 706,784.58

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1.5x scale

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.