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Finding the Fourth Proportional to 503,254.60, 694,510.46 and 288,436.12

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Solution

The fourth proportional to 503,254.60, 694,510.46 and 288,436.12 is: 398,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,254.60 : 694,510.46 = 288,436.12 : x
  2. Step 2: Convert to fraction form
    503,254.60/694,510.46 = 288,436.12/x
  3. Step 3: Cross multiply
    503,254.60x = 694,510.46 × 288,436.12
  4. Step 4: Simplify right side
    503,254.60x = 200,321,902,381.82
  5. Step 5: Solve for x
    x = 200,321,902,381.82/503,254.60
  6. Step 6: Final answer
    x = 398,052.80

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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.