Home / 804,959.80-1,207,439.70-243,921.40

Finding the Fourth Proportional to 804,959.80, 1,207,439.70 and 243,921.40

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Solution

The fourth proportional to 804,959.80, 1,207,439.70 and 243,921.40 is: 365,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,959.80 : 1,207,439.70 = 243,921.40 : x
  2. Step 2: Convert to fraction form
    804,959.80/1,207,439.70 = 243,921.40/x
  3. Step 3: Cross multiply
    804,959.80x = 1,207,439.70 × 243,921.40
  4. Step 4: Simplify right side
    804,959.80x = 294,520,382,039.58
  5. Step 5: Solve for x
    x = 294,520,382,039.58/804,959.80
  6. Step 6: Final answer
    x = 365,882.10

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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.