Home / 821,117.96-1,231,672.46-334,798.20

Finding the Fourth Proportional to 821,117.96, 1,231,672.46 and 334,798.20

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Solution

The fourth proportional to 821,117.96, 1,231,672.46 and 334,798.20 is: 502,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,117.96 : 1,231,672.46 = 334,798.20 : x
  2. Step 2: Convert to fraction form
    821,117.96/1,231,672.46 = 334,798.20/x
  3. Step 3: Cross multiply
    821,117.96x = 1,231,672.46 × 334,798.20
  4. Step 4: Simplify right side
    821,117.96x = 412,361,722,597.57
  5. Step 5: Solve for x
    x = 412,361,722,597.57/821,117.96
  6. Step 6: Final answer
    x = 502,195.47

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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.