Home / 1,210,001.90-1,815,002.85-762,104.30

Finding the Fourth Proportional to 1,210,001.90, 1,815,002.85 and 762,104.30

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Solution

The fourth proportional to 1,210,001.90, 1,815,002.85 and 762,104.30 is: 1,143,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,001.90 : 1,815,002.85 = 762,104.30 : x
  2. Step 2: Convert to fraction form
    1,210,001.90/1,815,002.85 = 762,104.30/x
  3. Step 3: Cross multiply
    1,210,001.90x = 1,815,002.85 × 762,104.30
  4. Step 4: Simplify right side
    1,210,001.90x = 1,383,221,476,497.26
  5. Step 5: Solve for x
    x = 1,383,221,476,497.26/1,210,001.90
  6. Step 6: Final answer
    x = 1,143,156.45

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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.