Home / 765,090.80-1,147,636.20-632,121.20

Finding the Fourth Proportional to 765,090.80, 1,147,636.20 and 632,121.20

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Solution

The fourth proportional to 765,090.80, 1,147,636.20 and 632,121.20 is: 948,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,090.80 : 1,147,636.20 = 632,121.20 : x
  2. Step 2: Convert to fraction form
    765,090.80/1,147,636.20 = 632,121.20/x
  3. Step 3: Cross multiply
    765,090.80x = 1,147,636.20 × 632,121.20
  4. Step 4: Simplify right side
    765,090.80x = 725,445,171,907.44
  5. Step 5: Solve for x
    x = 725,445,171,907.44/765,090.80
  6. Step 6: Final answer
    x = 948,181.80

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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.