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Finding the Fourth Proportional to 503,088, 754,410.60 and 266,375.40

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Solution

The fourth proportional to 503,088, 754,410.60 and 266,375.40 is: 399,445.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,088 : 754,410.60 = 266,375.40 : x
  2. Step 2: Convert to fraction form
    503,088/754,410.60 = 266,375.40/x
  3. Step 3: Cross multiply
    503,088x = 754,410.60 × 266,375.40
  4. Step 4: Simplify right side
    503,088x = 200,956,425,339.24
  5. Step 5: Solve for x
    x = 200,956,425,339.24/503,088
  6. Step 6: Final answer
    x = 399,445.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.