Home / 723,743.10-1,084,837.05-274,290.30

Finding the Fourth Proportional to 723,743.10, 1,084,837.05 and 274,290.30

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Solution

The fourth proportional to 723,743.10, 1,084,837.05 and 274,290.30 is: 411,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,743.10 : 1,084,837.05 = 274,290.30 : x
  2. Step 2: Convert to fraction form
    723,743.10/1,084,837.05 = 274,290.30/x
  3. Step 3: Cross multiply
    723,743.10x = 1,084,837.05 × 274,290.30
  4. Step 4: Simplify right side
    723,743.10x = 297,560,279,895.62
  5. Step 5: Solve for x
    x = 297,560,279,895.62/723,743.10
  6. Step 6: Final answer
    x = 411,140.75

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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.