Home / 728,043.20-1,091,870.40-222,603.20

Finding the Fourth Proportional to 728,043.20, 1,091,870.40 and 222,603.20

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Solution

The fourth proportional to 728,043.20, 1,091,870.40 and 222,603.20 is: 333,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,043.20 : 1,091,870.40 = 222,603.20 : x
  2. Step 2: Convert to fraction form
    728,043.20/1,091,870.40 = 222,603.20/x
  3. Step 3: Cross multiply
    728,043.20x = 1,091,870.40 × 222,603.20
  4. Step 4: Simplify right side
    728,043.20x = 243,053,845,025.28
  5. Step 5: Solve for x
    x = 243,053,845,025.28/728,043.20
  6. Step 6: Final answer
    x = 333,845.36

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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.