Home / 804,719.80-1,207,079.70-272,258.20

Finding the Fourth Proportional to 804,719.80, 1,207,079.70 and 272,258.20

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Solution

The fourth proportional to 804,719.80, 1,207,079.70 and 272,258.20 is: 408,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,719.80 : 1,207,079.70 = 272,258.20 : x
  2. Step 2: Convert to fraction form
    804,719.80/1,207,079.70 = 272,258.20/x
  3. Step 3: Cross multiply
    804,719.80x = 1,207,079.70 × 272,258.20
  4. Step 4: Simplify right side
    804,719.80x = 328,637,346,378.54
  5. Step 5: Solve for x
    x = 328,637,346,378.54/804,719.80
  6. Step 6: Final answer
    x = 408,387.30

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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.