Home / 1,214,812.10-1,822,218.15-978,616.10

Finding the Fourth Proportional to 1,214,812.10, 1,822,218.15 and 978,616.10

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Solution

The fourth proportional to 1,214,812.10, 1,822,218.15 and 978,616.10 is: 1,467,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,812.10 : 1,822,218.15 = 978,616.10 : x
  2. Step 2: Convert to fraction form
    1,214,812.10/1,822,218.15 = 978,616.10/x
  3. Step 3: Cross multiply
    1,214,812.10x = 1,822,218.15 × 978,616.10
  4. Step 4: Simplify right side
    1,214,812.10x = 1,783,252,019,302.22
  5. Step 5: Solve for x
    x = 1,783,252,019,302.22/1,214,812.10
  6. Step 6: Final answer
    x = 1,467,924.15

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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.