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Finding the Fourth Proportional to 488,422.06, 674,168.76 and 297,529.78

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Solution

The fourth proportional to 488,422.06, 674,168.76 and 297,529.78 is: 410,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,422.06 : 674,168.76 = 297,529.78 : x
  2. Step 2: Convert to fraction form
    488,422.06/674,168.76 = 297,529.78/x
  3. Step 3: Cross multiply
    488,422.06x = 674,168.76 × 297,529.78
  4. Step 4: Simplify right side
    488,422.06x = 200,585,282,845.67
  5. Step 5: Solve for x
    x = 200,585,282,845.67/488,422.06
  6. Step 6: Final answer
    x = 410,680.23

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1.5x scale

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.