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Finding the Fourth Proportional to 479,989.60, 662,381.49 and 265,144.66

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Solution

The fourth proportional to 479,989.60, 662,381.49 and 265,144.66 is: 365,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,989.60 : 662,381.49 = 265,144.66 : x
  2. Step 2: Convert to fraction form
    479,989.60/662,381.49 = 265,144.66/x
  3. Step 3: Cross multiply
    479,989.60x = 662,381.49 × 265,144.66
  4. Step 4: Simplify right side
    479,989.60x = 175,626,914,956.34
  5. Step 5: Solve for x
    x = 175,626,914,956.34/479,989.60
  6. Step 6: Final answer
    x = 365,897.33

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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.