Home / 631,309.09-947,280.40-294,376.11

Finding the Fourth Proportional to 631,309.09, 947,280.40 and 294,376.11

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Solution

The fourth proportional to 631,309.09, 947,280.40 and 294,376.11 is: 441,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,309.09 : 947,280.40 = 294,376.11 : x
  2. Step 2: Convert to fraction form
    631,309.09/947,280.40 = 294,376.11/x
  3. Step 3: Cross multiply
    631,309.09x = 947,280.40 × 294,376.11
  4. Step 4: Simplify right side
    631,309.09x = 278,856,719,231.24
  5. Step 5: Solve for x
    x = 278,856,719,231.24/631,309.09
  6. Step 6: Final answer
    x = 441,711.87

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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.