Home / 828,170.55-1,142,864.39-460,645.20

Finding the Fourth Proportional to 828,170.55, 1,142,864.39 and 460,645.20

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Solution

The fourth proportional to 828,170.55, 1,142,864.39 and 460,645.20 is: 635,684.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,170.55 : 1,142,864.39 = 460,645.20 : x
  2. Step 2: Convert to fraction form
    828,170.55/1,142,864.39 = 460,645.20/x
  3. Step 3: Cross multiply
    828,170.55x = 1,142,864.39 × 460,645.20
  4. Step 4: Simplify right side
    828,170.55x = 526,454,993,201.20
  5. Step 5: Solve for x
    x = 526,454,993,201.20/828,170.55
  6. Step 6: Final answer
    x = 635,684.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.