Home / 812,346.30-1,121,079.33-449,810.19

Finding the Fourth Proportional to 812,346.30, 1,121,079.33 and 449,810.19

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Solution

The fourth proportional to 812,346.30, 1,121,079.33 and 449,810.19 is: 620,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,346.30 : 1,121,079.33 = 449,810.19 : x
  2. Step 2: Convert to fraction form
    812,346.30/1,121,079.33 = 449,810.19/x
  3. Step 3: Cross multiply
    812,346.30x = 1,121,079.33 × 449,810.19
  4. Step 4: Simplify right side
    812,346.30x = 504,272,906,432.37
  5. Step 5: Solve for x
    x = 504,272,906,432.37/812,346.30
  6. Step 6: Final answer
    x = 620,761.01

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.