Home / 1,213,158.20-1,820,126.10-814,249.40

Finding the Fourth Proportional to 1,213,158.20, 1,820,126.10 and 814,249.40

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Solution

The fourth proportional to 1,213,158.20, 1,820,126.10 and 814,249.40 is: 1,221,635.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,158.20 : 1,820,126.10 = 814,249.40 : x
  2. Step 2: Convert to fraction form
    1,213,158.20/1,820,126.10 = 814,249.40/x
  3. Step 3: Cross multiply
    1,213,158.20x = 1,820,126.10 × 814,249.40
  4. Step 4: Simplify right side
    1,213,158.20x = 1,482,036,584,849.34
  5. Step 5: Solve for x
    x = 1,482,036,584,849.34/1,213,158.20
  6. Step 6: Final answer
    x = 1,221,635.06

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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.