Home / 511,743.20-766,635.60-275,007.20

Finding the Fourth Proportional to 511,743.20, 766,635.60 and 275,007.20

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Solution

The fourth proportional to 511,743.20, 766,635.60 and 275,007.20 is: 411,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,743.20 : 766,635.60 = 275,007.20 : x
  2. Step 2: Convert to fraction form
    511,743.20/766,635.60 = 275,007.20/x
  3. Step 3: Cross multiply
    511,743.20x = 766,635.60 × 275,007.20
  4. Step 4: Simplify right side
    511,743.20x = 210,830,309,776.32
  5. Step 5: Solve for x
    x = 210,830,309,776.32/511,743.20
  6. Step 6: Final answer
    x = 411,984.58

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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.