Home / 1,005,421.88-1,388,892.04-914,617.64

Finding the Fourth Proportional to 1,005,421.88, 1,388,892.04 and 914,617.64

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Solution

The fourth proportional to 1,005,421.88, 1,388,892.04 and 914,617.64 is: 1,263,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,421.88 : 1,388,892.04 = 914,617.64 : x
  2. Step 2: Convert to fraction form
    1,005,421.88/1,388,892.04 = 914,617.64/x
  3. Step 3: Cross multiply
    1,005,421.88x = 1,388,892.04 × 914,617.64
  4. Step 4: Simplify right side
    1,005,421.88x = 1,270,305,159,839.59
  5. Step 5: Solve for x
    x = 1,270,305,159,839.59/1,005,421.88
  6. Step 6: Final answer
    x = 1,263,454.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.