Home / 417,126.90-625,690.34-192,420.85

Finding the Fourth Proportional to 417,126.90, 625,690.34 and 192,420.85

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Solution

The fourth proportional to 417,126.90, 625,690.34 and 192,420.85 is: 288,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,126.90 : 625,690.34 = 192,420.85 : x
  2. Step 2: Convert to fraction form
    417,126.90/625,690.34 = 192,420.85/x
  3. Step 3: Cross multiply
    417,126.90x = 625,690.34 × 192,420.85
  4. Step 4: Simplify right side
    417,126.90x = 120,395,869,856.71
  5. Step 5: Solve for x
    x = 120,395,869,856.71/417,126.90
  6. Step 6: Final answer
    x = 288,631.28

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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.