Home / 734,587.80-1,101,881.70-261,288.60

Finding the Fourth Proportional to 734,587.80, 1,101,881.70 and 261,288.60

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Solution

The fourth proportional to 734,587.80, 1,101,881.70 and 261,288.60 is: 391,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,587.80 : 1,101,881.70 = 261,288.60 : x
  2. Step 2: Convert to fraction form
    734,587.80/1,101,881.70 = 261,288.60/x
  3. Step 3: Cross multiply
    734,587.80x = 1,101,881.70 × 261,288.60
  4. Step 4: Simplify right side
    734,587.80x = 287,909,126,758.62
  5. Step 5: Solve for x
    x = 287,909,126,758.62/734,587.80
  6. Step 6: Final answer
    x = 391,932.90

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Similar ratio
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1.5x scale

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.