Home / 942,713.64-1,300,942.42-512,993.66

Finding the Fourth Proportional to 942,713.64, 1,300,942.42 and 512,993.66

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Solution

The fourth proportional to 942,713.64, 1,300,942.42 and 512,993.66 is: 707,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,713.64 : 1,300,942.42 = 512,993.66 : x
  2. Step 2: Convert to fraction form
    942,713.64/1,300,942.42 = 512,993.66/x
  3. Step 3: Cross multiply
    942,713.64x = 1,300,942.42 × 512,993.66
  4. Step 4: Simplify right side
    942,713.64x = 667,375,205,697.86
  5. Step 5: Solve for x
    x = 667,375,205,697.86/942,713.64
  6. Step 6: Final answer
    x = 707,929.93

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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.