Home / 1,108,990.44-1,664,228.70-389,334.28

Finding the Fourth Proportional to 1,108,990.44, 1,664,228.70 and 389,334.28

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Solution

The fourth proportional to 1,108,990.44, 1,664,228.70 and 389,334.28 is: 584,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,990.44 : 1,664,228.70 = 389,334.28 : x
  2. Step 2: Convert to fraction form
    1,108,990.44/1,664,228.70 = 389,334.28/x
  3. Step 3: Cross multiply
    1,108,990.44x = 1,664,228.70 × 389,334.28
  4. Step 4: Simplify right side
    1,108,990.44x = 647,941,282,669.84
  5. Step 5: Solve for x
    x = 647,941,282,669.84/1,108,990.44
  6. Step 6: Final answer
    x = 584,262.28

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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.