Home / 747,072.60-1,120,608.90-248,436.60

Finding the Fourth Proportional to 747,072.60, 1,120,608.90 and 248,436.60

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Solution

The fourth proportional to 747,072.60, 1,120,608.90 and 248,436.60 is: 372,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,072.60 : 1,120,608.90 = 248,436.60 : x
  2. Step 2: Convert to fraction form
    747,072.60/1,120,608.90 = 248,436.60/x
  3. Step 3: Cross multiply
    747,072.60x = 1,120,608.90 × 248,436.60
  4. Step 4: Simplify right side
    747,072.60x = 278,400,265,045.74
  5. Step 5: Solve for x
    x = 278,400,265,045.74/747,072.60
  6. Step 6: Final answer
    x = 372,654.90

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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.