Home / 748,992.20-1,123,771.31-449,681.40

Finding the Fourth Proportional to 748,992.20, 1,123,771.31 and 449,681.40

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Solution

The fourth proportional to 748,992.20, 1,123,771.31 and 449,681.40 is: 674,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,992.20 : 1,123,771.31 = 449,681.40 : x
  2. Step 2: Convert to fraction form
    748,992.20/1,123,771.31 = 449,681.40/x
  3. Step 3: Cross multiply
    748,992.20x = 1,123,771.31 × 449,681.40
  4. Step 4: Simplify right side
    748,992.20x = 505,339,055,398.53
  5. Step 5: Solve for x
    x = 505,339,055,398.53/748,992.20
  6. Step 6: Final answer
    x = 674,692.02

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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.