Home / 1,189,042.78-1,783,565.40-557,957.20

Finding the Fourth Proportional to 1,189,042.78, 1,783,565.40 and 557,957.20

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Solution

The fourth proportional to 1,189,042.78, 1,783,565.40 and 557,957.20 is: 836,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,042.78 : 1,783,565.40 = 557,957.20 : x
  2. Step 2: Convert to fraction form
    1,189,042.78/1,783,565.40 = 557,957.20/x
  3. Step 3: Cross multiply
    1,189,042.78x = 1,783,565.40 × 557,957.20
  4. Step 4: Simplify right side
    1,189,042.78x = 995,153,156,600.88
  5. Step 5: Solve for x
    x = 995,153,156,600.88/1,189,042.78
  6. Step 6: Final answer
    x = 836,936.38

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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.