Home / 1,213,121.10-1,820,848.05-614,757.90

Finding the Fourth Proportional to 1,213,121.10, 1,820,848.05 and 614,757.90

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Solution

The fourth proportional to 1,213,121.10, 1,820,848.05 and 614,757.90 is: 922,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,121.10 : 1,820,848.05 = 614,757.90 : x
  2. Step 2: Convert to fraction form
    1,213,121.10/1,820,848.05 = 614,757.90/x
  3. Step 3: Cross multiply
    1,213,121.10x = 1,820,848.05 × 614,757.90
  4. Step 4: Simplify right side
    1,213,121.10x = 1,119,380,723,437.10
  5. Step 5: Solve for x
    x = 1,119,380,723,437.10/1,213,121.10
  6. Step 6: Final answer
    x = 922,727.93

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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.