Home / 682,743.60-1,024,115.40-430,801.20

Finding the Fourth Proportional to 682,743.60, 1,024,115.40 and 430,801.20

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Solution

The fourth proportional to 682,743.60, 1,024,115.40 and 430,801.20 is: 646,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,743.60 : 1,024,115.40 = 430,801.20 : x
  2. Step 2: Convert to fraction form
    682,743.60/1,024,115.40 = 430,801.20/x
  3. Step 3: Cross multiply
    682,743.60x = 1,024,115.40 × 430,801.20
  4. Step 4: Simplify right side
    682,743.60x = 441,190,143,258.48
  5. Step 5: Solve for x
    x = 441,190,143,258.48/682,743.60
  6. Step 6: Final answer
    x = 646,201.80

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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.