Home / 1,119,684.20-1,545,118.36-629,639.78

Finding the Fourth Proportional to 1,119,684.20, 1,545,118.36 and 629,639.78

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Solution

The fourth proportional to 1,119,684.20, 1,545,118.36 and 629,639.78 is: 868,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,684.20 : 1,545,118.36 = 629,639.78 : x
  2. Step 2: Convert to fraction form
    1,119,684.20/1,545,118.36 = 629,639.78/x
  3. Step 3: Cross multiply
    1,119,684.20x = 1,545,118.36 × 629,639.78
  4. Step 4: Simplify right side
    1,119,684.20x = 972,867,974,964.67
  5. Step 5: Solve for x
    x = 972,867,974,964.67/1,119,684.20
  6. Step 6: Final answer
    x = 868,877.11

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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.