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Finding the Fourth Proportional to 508,638.80, 761,791.80 and 496,974.80

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Solution

The fourth proportional to 508,638.80, 761,791.80 and 496,974.80 is: 744,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,638.80 : 761,791.80 = 496,974.80 : x
  2. Step 2: Convert to fraction form
    508,638.80/761,791.80 = 496,974.80/x
  3. Step 3: Cross multiply
    508,638.80x = 761,791.80 × 496,974.80
  4. Step 4: Simplify right side
    508,638.80x = 378,591,327,446.64
  5. Step 5: Solve for x
    x = 378,591,327,446.64/508,638.80
  6. Step 6: Final answer
    x = 744,322.55

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1.5x scale

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.