Home / 1,384,019.88-1,910,732.13-900,342.96

Finding the Fourth Proportional to 1,384,019.88, 1,910,732.13 and 900,342.96

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Solution

The fourth proportional to 1,384,019.88, 1,910,732.13 and 900,342.96 is: 1,242,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,019.88 : 1,910,732.13 = 900,342.96 : x
  2. Step 2: Convert to fraction form
    1,384,019.88/1,910,732.13 = 900,342.96/x
  3. Step 3: Cross multiply
    1,384,019.88x = 1,910,732.13 × 900,342.96
  4. Step 4: Simplify right side
    1,384,019.88x = 1,720,314,221,691.30
  5. Step 5: Solve for x
    x = 1,720,314,221,691.30/1,384,019.88
  6. Step 6: Final answer
    x = 1,242,983.75

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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.