Home / 764,585.90-1,146,842.40-259,097.30

Finding the Fourth Proportional to 764,585.90, 1,146,842.40 and 259,097.30

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Solution

The fourth proportional to 764,585.90, 1,146,842.40 and 259,097.30 is: 388,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,585.90 : 1,146,842.40 = 259,097.30 : x
  2. Step 2: Convert to fraction form
    764,585.90/1,146,842.40 = 259,097.30/x
  3. Step 3: Cross multiply
    764,585.90x = 1,146,842.40 × 259,097.30
  4. Step 4: Simplify right side
    764,585.90x = 297,143,769,365.52
  5. Step 5: Solve for x
    x = 297,143,769,365.52/764,585.90
  6. Step 6: Final answer
    x = 388,633.60

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Double scale
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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.