Home / 2,078,642.80-3,115,631.40-880,361.20

Finding the Fourth Proportional to 2,078,642.80, 3,115,631.40 and 880,361.20

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Solution

The fourth proportional to 2,078,642.80, 3,115,631.40 and 880,361.20 is: 1,319,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,642.80 : 3,115,631.40 = 880,361.20 : x
  2. Step 2: Convert to fraction form
    2,078,642.80/3,115,631.40 = 880,361.20/x
  3. Step 3: Cross multiply
    2,078,642.80x = 3,115,631.40 × 880,361.20
  4. Step 4: Simplify right side
    2,078,642.80x = 2,742,880,998,061.68
  5. Step 5: Solve for x
    x = 2,742,880,998,061.68/2,078,642.80
  6. Step 6: Final answer
    x = 1,319,553.80

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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.