Home / 1,927,108.80-2,887,660.80-728,377.20

Finding the Fourth Proportional to 1,927,108.80, 2,887,660.80 and 728,377.20

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Solution

The fourth proportional to 1,927,108.80, 2,887,660.80 and 728,377.20 is: 1,091,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,108.80 : 2,887,660.80 = 728,377.20 : x
  2. Step 2: Convert to fraction form
    1,927,108.80/2,887,660.80 = 728,377.20/x
  3. Step 3: Cross multiply
    1,927,108.80x = 2,887,660.80 × 728,377.20
  4. Step 4: Simplify right side
    1,927,108.80x = 2,103,306,288,053.76
  5. Step 5: Solve for x
    x = 2,103,306,288,053.76/1,927,108.80
  6. Step 6: Final answer
    x = 1,091,431.00

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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.