Home / 625,716.20-863,423.52-384,008.96

Finding the Fourth Proportional to 625,716.20, 863,423.52 and 384,008.96

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Solution

The fourth proportional to 625,716.20, 863,423.52 and 384,008.96 is: 529,892.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,716.20 : 863,423.52 = 384,008.96 : x
  2. Step 2: Convert to fraction form
    625,716.20/863,423.52 = 384,008.96/x
  3. Step 3: Cross multiply
    625,716.20x = 863,423.52 × 384,008.96
  4. Step 4: Simplify right side
    625,716.20x = 331,562,367,954.74
  5. Step 5: Solve for x
    x = 331,562,367,954.74/625,716.20
  6. Step 6: Final answer
    x = 529,892.57

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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.