Home / 764,788.03-1,146,148.58-291,215.05

Finding the Fourth Proportional to 764,788.03, 1,146,148.58 and 291,215.05

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Solution

The fourth proportional to 764,788.03, 1,146,148.58 and 291,215.05 is: 436,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,788.03 : 1,146,148.58 = 291,215.05 : x
  2. Step 2: Convert to fraction form
    764,788.03/1,146,148.58 = 291,215.05/x
  3. Step 3: Cross multiply
    764,788.03x = 1,146,148.58 × 291,215.05
  4. Step 4: Simplify right side
    764,788.03x = 333,775,713,894.80
  5. Step 5: Solve for x
    x = 333,775,713,894.80/764,788.03
  6. Step 6: Final answer
    x = 436,429.05

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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.