Home / 880,122.70-1,321,058.85-431,350.30

Finding the Fourth Proportional to 880,122.70, 1,321,058.85 and 431,350.30

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Solution

The fourth proportional to 880,122.70, 1,321,058.85 and 431,350.30 is: 647,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,122.70 : 1,321,058.85 = 431,350.30 : x
  2. Step 2: Convert to fraction form
    880,122.70/1,321,058.85 = 431,350.30/x
  3. Step 3: Cross multiply
    880,122.70x = 1,321,058.85 × 431,350.30
  4. Step 4: Simplify right side
    880,122.70x = 569,839,131,265.16
  5. Step 5: Solve for x
    x = 569,839,131,265.16/880,122.70
  6. Step 6: Final answer
    x = 647,454.19

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Double scale
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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.