Home / 2,642,181.40-3,963,920.10-1,221,938.20

Finding the Fourth Proportional to 2,642,181.40, 3,963,920.10 and 1,221,938.20

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Solution

The fourth proportional to 2,642,181.40, 3,963,920.10 and 1,221,938.20 is: 1,833,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,181.40 : 3,963,920.10 = 1,221,938.20 : x
  2. Step 2: Convert to fraction form
    2,642,181.40/3,963,920.10 = 1,221,938.20/x
  3. Step 3: Cross multiply
    2,642,181.40x = 3,963,920.10 × 1,221,938.20
  4. Step 4: Simplify right side
    2,642,181.40x = 4,843,665,391,937.82
  5. Step 5: Solve for x
    x = 4,843,665,391,937.82/2,642,181.40
  6. Step 6: Final answer
    x = 1,833,206.98

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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.