Home / 1,226,387.85-1,839,827.81-427,454.88

Finding the Fourth Proportional to 1,226,387.85, 1,839,827.81 and 427,454.88

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Solution

The fourth proportional to 1,226,387.85, 1,839,827.81 and 427,454.88 is: 641,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,387.85 : 1,839,827.81 = 427,454.88 : x
  2. Step 2: Convert to fraction form
    1,226,387.85/1,839,827.81 = 427,454.88/x
  3. Step 3: Cross multiply
    1,226,387.85x = 1,839,827.81 × 427,454.88
  4. Step 4: Simplify right side
    1,226,387.85x = 786,443,375,744.21
  5. Step 5: Solve for x
    x = 786,443,375,744.21/1,226,387.85
  6. Step 6: Final answer
    x = 641,268.07

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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.