Home / 804,905.40-1,206,920.70-272,152.20

Finding the Fourth Proportional to 804,905.40, 1,206,920.70 and 272,152.20

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Solution

The fourth proportional to 804,905.40, 1,206,920.70 and 272,152.20 is: 408,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,905.40 : 1,206,920.70 = 272,152.20 : x
  2. Step 2: Convert to fraction form
    804,905.40/1,206,920.70 = 272,152.20/x
  3. Step 3: Cross multiply
    804,905.40x = 1,206,920.70 × 272,152.20
  4. Step 4: Simplify right side
    804,905.40x = 328,466,123,730.54
  5. Step 5: Solve for x
    x = 328,466,123,730.54/804,905.40
  6. Step 6: Final answer
    x = 408,080.41

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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.