Home / 828,170.10-1,242,255.15-492,246.90

Finding the Fourth Proportional to 828,170.10, 1,242,255.15 and 492,246.90

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Solution

The fourth proportional to 828,170.10, 1,242,255.15 and 492,246.90 is: 738,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,170.10 : 1,242,255.15 = 492,246.90 : x
  2. Step 2: Convert to fraction form
    828,170.10/1,242,255.15 = 492,246.90/x
  3. Step 3: Cross multiply
    828,170.10x = 1,242,255.15 × 492,246.90
  4. Step 4: Simplify right side
    828,170.10x = 611,496,246,596.54
  5. Step 5: Solve for x
    x = 611,496,246,596.54/828,170.10
  6. Step 6: Final answer
    x = 738,370.35

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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.