Home / 1,214,976.10-1,822,464.15-978,780.10

Finding the Fourth Proportional to 1,214,976.10, 1,822,464.15 and 978,780.10

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Solution

The fourth proportional to 1,214,976.10, 1,822,464.15 and 978,780.10 is: 1,468,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,976.10 : 1,822,464.15 = 978,780.10 : x
  2. Step 2: Convert to fraction form
    1,214,976.10/1,822,464.15 = 978,780.10/x
  3. Step 3: Cross multiply
    1,214,976.10x = 1,822,464.15 × 978,780.10
  4. Step 4: Simplify right side
    1,214,976.10x = 1,783,791,642,983.41
  5. Step 5: Solve for x
    x = 1,783,791,642,983.41/1,214,976.10
  6. Step 6: Final answer
    x = 1,468,170.15

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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.