Home / 716,380.38-988,514.85-484,311.96

Finding the Fourth Proportional to 716,380.38, 988,514.85 and 484,311.96

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Solution

The fourth proportional to 716,380.38, 988,514.85 and 484,311.96 is: 668,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,380.38 : 988,514.85 = 484,311.96 : x
  2. Step 2: Convert to fraction form
    716,380.38/988,514.85 = 484,311.96/x
  3. Step 3: Cross multiply
    716,380.38x = 988,514.85 × 484,311.96
  4. Step 4: Simplify right side
    716,380.38x = 478,749,564,492.61
  5. Step 5: Solve for x
    x = 478,749,564,492.61/716,380.38
  6. Step 6: Final answer
    x = 668,289.61

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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.