Home / 753,424.22-1,130,012.13-247,991.78

Finding the Fourth Proportional to 753,424.22, 1,130,012.13 and 247,991.78

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Solution

The fourth proportional to 753,424.22, 1,130,012.13 and 247,991.78 is: 371,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,424.22 : 1,130,012.13 = 247,991.78 : x
  2. Step 2: Convert to fraction form
    753,424.22/1,130,012.13 = 247,991.78/x
  3. Step 3: Cross multiply
    753,424.22x = 1,130,012.13 × 247,991.78
  4. Step 4: Simplify right side
    753,424.22x = 280,233,719,540.29
  5. Step 5: Solve for x
    x = 280,233,719,540.29/753,424.22
  6. Step 6: Final answer
    x = 371,946.79

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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.