Home / 738,728.40-1,108,092.60-265,429.20

Finding the Fourth Proportional to 738,728.40, 1,108,092.60 and 265,429.20

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Solution

The fourth proportional to 738,728.40, 1,108,092.60 and 265,429.20 is: 398,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,728.40 : 1,108,092.60 = 265,429.20 : x
  2. Step 2: Convert to fraction form
    738,728.40/1,108,092.60 = 265,429.20/x
  3. Step 3: Cross multiply
    738,728.40x = 1,108,092.60 × 265,429.20
  4. Step 4: Simplify right side
    738,728.40x = 294,120,132,343.92
  5. Step 5: Solve for x
    x = 294,120,132,343.92/738,728.40
  6. Step 6: Final answer
    x = 398,143.80

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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.