Home / 1,109,742.40-1,663,641.60-753,601.60

Finding the Fourth Proportional to 1,109,742.40, 1,663,641.60 and 753,601.60

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Solution

The fourth proportional to 1,109,742.40, 1,663,641.60 and 753,601.60 is: 1,129,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,742.40 : 1,663,641.60 = 753,601.60 : x
  2. Step 2: Convert to fraction form
    1,109,742.40/1,663,641.60 = 753,601.60/x
  3. Step 3: Cross multiply
    1,109,742.40x = 1,663,641.60 × 753,601.60
  4. Step 4: Simplify right side
    1,109,742.40x = 1,253,722,971,586.56
  5. Step 5: Solve for x
    x = 1,253,722,971,586.56/1,109,742.40
  6. Step 6: Final answer
    x = 1,129,742.34

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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.