Home / 1,815,115.10-2,722,672.65-1,389,962.30

Finding the Fourth Proportional to 1,815,115.10, 2,722,672.65 and 1,389,962.30

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Solution

The fourth proportional to 1,815,115.10, 2,722,672.65 and 1,389,962.30 is: 2,084,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,115.10 : 2,722,672.65 = 1,389,962.30 : x
  2. Step 2: Convert to fraction form
    1,815,115.10/2,722,672.65 = 1,389,962.30/x
  3. Step 3: Cross multiply
    1,815,115.10x = 2,722,672.65 × 1,389,962.30
  4. Step 4: Simplify right side
    1,815,115.10x = 3,784,412,338,741.10
  5. Step 5: Solve for x
    x = 3,784,412,338,741.10/1,815,115.10
  6. Step 6: Final answer
    x = 2,084,943.45

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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.