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Finding the Fourth Proportional to 667,586.75, 997,714.97 and 488,050.13

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Solution

The fourth proportional to 667,586.75, 997,714.97 and 488,050.13 is: 729,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,586.75 : 997,714.97 = 488,050.13 : x
  2. Step 2: Convert to fraction form
    667,586.75/997,714.97 = 488,050.13/x
  3. Step 3: Cross multiply
    667,586.75x = 997,714.97 × 488,050.13
  4. Step 4: Simplify right side
    667,586.75x = 486,934,920,811.45
  5. Step 5: Solve for x
    x = 486,934,920,811.45/667,586.75
  6. Step 6: Final answer
    x = 729,395.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.