Home / 849,331.20-1,273,996.80-343,891.20

Finding the Fourth Proportional to 849,331.20, 1,273,996.80 and 343,891.20

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Solution

The fourth proportional to 849,331.20, 1,273,996.80 and 343,891.20 is: 515,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,331.20 : 1,273,996.80 = 343,891.20 : x
  2. Step 2: Convert to fraction form
    849,331.20/1,273,996.80 = 343,891.20/x
  3. Step 3: Cross multiply
    849,331.20x = 1,273,996.80 × 343,891.20
  4. Step 4: Simplify right side
    849,331.20x = 438,116,288,348.16
  5. Step 5: Solve for x
    x = 438,116,288,348.16/849,331.20
  6. Step 6: Final answer
    x = 515,836.80

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Double scale
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Similar ratio
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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.