Home / 880,336.55-1,221,079.78-857,002.96

Finding the Fourth Proportional to 880,336.55, 1,221,079.78 and 857,002.96

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Solution

The fourth proportional to 880,336.55, 1,221,079.78 and 857,002.96 is: 1,188,714.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,336.55 : 1,221,079.78 = 857,002.96 : x
  2. Step 2: Convert to fraction form
    880,336.55/1,221,079.78 = 857,002.96/x
  3. Step 3: Cross multiply
    880,336.55x = 1,221,079.78 × 857,002.96
  4. Step 4: Simplify right side
    880,336.55x = 1,046,468,987,429.81
  5. Step 5: Solve for x
    x = 1,046,468,987,429.81/880,336.55
  6. Step 6: Final answer
    x = 1,188,714.68

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.