Home / 739,659.84-1,109,489.76-313,262.88

Finding the Fourth Proportional to 739,659.84, 1,109,489.76 and 313,262.88

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Solution

The fourth proportional to 739,659.84, 1,109,489.76 and 313,262.88 is: 469,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,659.84 : 1,109,489.76 = 313,262.88 : x
  2. Step 2: Convert to fraction form
    739,659.84/1,109,489.76 = 313,262.88/x
  3. Step 3: Cross multiply
    739,659.84x = 1,109,489.76 × 313,262.88
  4. Step 4: Simplify right side
    739,659.84x = 347,561,957,548.11
  5. Step 5: Solve for x
    x = 347,561,957,548.11/739,659.84
  6. Step 6: Final answer
    x = 469,894.32

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Double scale
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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.