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Finding the Fourth Proportional to 503,018.13, 754,305.69 and 266,305.44

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Solution

The fourth proportional to 503,018.13, 754,305.69 and 266,305.44 is: 399,340.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,018.13 : 754,305.69 = 266,305.44 : x
  2. Step 2: Convert to fraction form
    503,018.13/754,305.69 = 266,305.44/x
  3. Step 3: Cross multiply
    503,018.13x = 754,305.69 × 266,305.44
  4. Step 4: Simplify right side
    503,018.13x = 200,875,708,669.95
  5. Step 5: Solve for x
    x = 200,875,708,669.95/503,018.13
  6. Step 6: Final answer
    x = 399,340.89

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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.