Home / 876,845.20-1,315,267.80-823,701.10

Finding the Fourth Proportional to 876,845.20, 1,315,267.80 and 823,701.10

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Solution

The fourth proportional to 876,845.20, 1,315,267.80 and 823,701.10 is: 1,235,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,845.20 : 1,315,267.80 = 823,701.10 : x
  2. Step 2: Convert to fraction form
    876,845.20/1,315,267.80 = 823,701.10/x
  3. Step 3: Cross multiply
    876,845.20x = 1,315,267.80 × 823,701.10
  4. Step 4: Simplify right side
    876,845.20x = 1,083,387,533,654.58
  5. Step 5: Solve for x
    x = 1,083,387,533,654.58/876,845.20
  6. Step 6: Final answer
    x = 1,235,551.65

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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.