Home / 873,126.86-1,309,690.62-392,793.59

Finding the Fourth Proportional to 873,126.86, 1,309,690.62 and 392,793.59

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Solution

The fourth proportional to 873,126.86, 1,309,690.62 and 392,793.59 is: 589,190.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,126.86 : 1,309,690.62 = 392,793.59 : x
  2. Step 2: Convert to fraction form
    873,126.86/1,309,690.62 = 392,793.59/x
  3. Step 3: Cross multiply
    873,126.86x = 1,309,690.62 × 392,793.59
  4. Step 4: Simplify right side
    873,126.86x = 514,438,080,419.13
  5. Step 5: Solve for x
    x = 514,438,080,419.13/873,126.86
  6. Step 6: Final answer
    x = 589,190.53

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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.