Home / 715,059.12-1,073,040.48-399,722.88

Finding the Fourth Proportional to 715,059.12, 1,073,040.48 and 399,722.88

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Solution

The fourth proportional to 715,059.12, 1,073,040.48 and 399,722.88 is: 599,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,059.12 : 1,073,040.48 = 399,722.88 : x
  2. Step 2: Convert to fraction form
    715,059.12/1,073,040.48 = 399,722.88/x
  3. Step 3: Cross multiply
    715,059.12x = 1,073,040.48 × 399,722.88
  4. Step 4: Simplify right side
    715,059.12x = 428,918,831,022.18
  5. Step 5: Solve for x
    x = 428,918,831,022.18/715,059.12
  6. Step 6: Final answer
    x = 599,836.88

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1.5x scale

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.