Home / 625,401.24-863,146.27-395,979.85

Finding the Fourth Proportional to 625,401.24, 863,146.27 and 395,979.85

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Solution

The fourth proportional to 625,401.24, 863,146.27 and 395,979.85 is: 546,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,401.24 : 863,146.27 = 395,979.85 : x
  2. Step 2: Convert to fraction form
    625,401.24/863,146.27 = 395,979.85/x
  3. Step 3: Cross multiply
    625,401.24x = 863,146.27 × 395,979.85
  4. Step 4: Simplify right side
    625,401.24x = 341,788,529,532.71
  5. Step 5: Solve for x
    x = 341,788,529,532.71/625,401.24
  6. Step 6: Final answer
    x = 546,510.79

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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.