Home / 1,198,139.80-1,796,553.60-487,364.80

Finding the Fourth Proportional to 1,198,139.80, 1,796,553.60 and 487,364.80

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Solution

The fourth proportional to 1,198,139.80, 1,796,553.60 and 487,364.80 is: 730,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,139.80 : 1,796,553.60 = 487,364.80 : x
  2. Step 2: Convert to fraction form
    1,198,139.80/1,796,553.60 = 487,364.80/x
  3. Step 3: Cross multiply
    1,198,139.80x = 1,796,553.60 × 487,364.80
  4. Step 4: Simplify right side
    1,198,139.80x = 875,576,985,953.28
  5. Step 5: Solve for x
    x = 875,576,985,953.28/1,198,139.80
  6. Step 6: Final answer
    x = 730,780.32

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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.