Home / 720,509.10-1,080,785.52-247,187.76

Finding the Fourth Proportional to 720,509.10, 1,080,785.52 and 247,187.76

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Solution

The fourth proportional to 720,509.10, 1,080,785.52 and 247,187.76 is: 370,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,509.10 : 1,080,785.52 = 247,187.76 : x
  2. Step 2: Convert to fraction form
    720,509.10/1,080,785.52 = 247,187.76/x
  3. Step 3: Cross multiply
    720,509.10x = 1,080,785.52 × 247,187.76
  4. Step 4: Simplify right side
    720,509.10x = 267,156,951,729.24
  5. Step 5: Solve for x
    x = 267,156,951,729.24/720,509.10
  6. Step 6: Final answer
    x = 370,789.14

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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.