Home / 748,099.20-1,122,148.80-298,889.40

Finding the Fourth Proportional to 748,099.20, 1,122,148.80 and 298,889.40

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Solution

The fourth proportional to 748,099.20, 1,122,148.80 and 298,889.40 is: 448,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,099.20 : 1,122,148.80 = 298,889.40 : x
  2. Step 2: Convert to fraction form
    748,099.20/1,122,148.80 = 298,889.40/x
  3. Step 3: Cross multiply
    748,099.20x = 1,122,148.80 × 298,889.40
  4. Step 4: Simplify right side
    748,099.20x = 335,398,381,542.72
  5. Step 5: Solve for x
    x = 335,398,381,542.72/748,099.20
  6. Step 6: Final answer
    x = 448,334.10

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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.