Home / 765,739.59-1,148,609.31-204,759.51

Finding the Fourth Proportional to 765,739.59, 1,148,609.31 and 204,759.51

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Solution

The fourth proportional to 765,739.59, 1,148,609.31 and 204,759.51 is: 307,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,739.59 : 1,148,609.31 = 204,759.51 : x
  2. Step 2: Convert to fraction form
    765,739.59/1,148,609.31 = 204,759.51/x
  3. Step 3: Cross multiply
    765,739.59x = 1,148,609.31 × 204,759.51
  4. Step 4: Simplify right side
    765,739.59x = 235,188,679,497.04
  5. Step 5: Solve for x
    x = 235,188,679,497.04/765,739.59
  6. Step 6: Final answer
    x = 307,139.24

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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.