Home / 1,109,539.28-1,664,481.72-361,411.28

Finding the Fourth Proportional to 1,109,539.28, 1,664,481.72 and 361,411.28

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Solution

The fourth proportional to 1,109,539.28, 1,664,481.72 and 361,411.28 is: 542,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,539.28 : 1,664,481.72 = 361,411.28 : x
  2. Step 2: Convert to fraction form
    1,109,539.28/1,664,481.72 = 361,411.28/x
  3. Step 3: Cross multiply
    1,109,539.28x = 1,664,481.72 × 361,411.28
  4. Step 4: Simplify right side
    1,109,539.28x = 601,562,468,961.80
  5. Step 5: Solve for x
    x = 601,562,468,961.80/1,109,539.28
  6. Step 6: Final answer
    x = 542,173.21

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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.