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Finding the Fourth Proportional to 918,503, 1,377,773.50 and 334,242.64

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Solution

The fourth proportional to 918,503, 1,377,773.50 and 334,242.64 is: 501,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,503 : 1,377,773.50 = 334,242.64 : x
  2. Step 2: Convert to fraction form
    918,503/1,377,773.50 = 334,242.64/x
  3. Step 3: Cross multiply
    918,503x = 1,377,773.50 × 334,242.64
  4. Step 4: Simplify right side
    918,503x = 460,510,651,962.04
  5. Step 5: Solve for x
    x = 460,510,651,962.04/918,503
  6. Step 6: Final answer
    x = 501,370.87

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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.