Home / 485,913.14-729,080.22-261,011.18

Finding the Fourth Proportional to 485,913.14, 729,080.22 and 261,011.18

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Solution

The fourth proportional to 485,913.14, 729,080.22 and 261,011.18 is: 391,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,913.14 : 729,080.22 = 261,011.18 : x
  2. Step 2: Convert to fraction form
    485,913.14/729,080.22 = 261,011.18/x
  3. Step 3: Cross multiply
    485,913.14x = 729,080.22 × 261,011.18
  4. Step 4: Simplify right side
    485,913.14x = 190,298,088,536.86
  5. Step 5: Solve for x
    x = 190,298,088,536.86/485,913.14
  6. Step 6: Final answer
    x = 391,629.85

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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.