Home / 1,206,381.28-1,809,634.20-307,830.88

Finding the Fourth Proportional to 1,206,381.28, 1,809,634.20 and 307,830.88

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Solution

The fourth proportional to 1,206,381.28, 1,809,634.20 and 307,830.88 is: 461,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,381.28 : 1,809,634.20 = 307,830.88 : x
  2. Step 2: Convert to fraction form
    1,206,381.28/1,809,634.20 = 307,830.88/x
  3. Step 3: Cross multiply
    1,206,381.28x = 1,809,634.20 × 307,830.88
  4. Step 4: Simplify right side
    1,206,381.28x = 557,061,288,264.10
  5. Step 5: Solve for x
    x = 557,061,288,264.10/1,206,381.28
  6. Step 6: Final answer
    x = 461,762.21

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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.