Home / 764,722.29-1,146,412.76-291,092.61

Finding the Fourth Proportional to 764,722.29, 1,146,412.76 and 291,092.61

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Solution

The fourth proportional to 764,722.29, 1,146,412.76 and 291,092.61 is: 436,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,722.29 : 1,146,412.76 = 291,092.61 : x
  2. Step 2: Convert to fraction form
    764,722.29/1,146,412.76 = 291,092.61/x
  3. Step 3: Cross multiply
    764,722.29x = 1,146,412.76 × 291,092.61
  4. Step 4: Simplify right side
    764,722.29x = 333,712,280,990.24
  5. Step 5: Solve for x
    x = 333,712,280,990.24/764,722.29
  6. Step 6: Final answer
    x = 436,383.62

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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.