Home / 742,143.99-1,113,213.25-268,718.64

Finding the Fourth Proportional to 742,143.99, 1,113,213.25 and 268,718.64

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Solution

The fourth proportional to 742,143.99, 1,113,213.25 and 268,718.64 is: 403,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,143.99 : 1,113,213.25 = 268,718.64 : x
  2. Step 2: Convert to fraction form
    742,143.99/1,113,213.25 = 268,718.64/x
  3. Step 3: Cross multiply
    742,143.99x = 1,113,213.25 × 268,718.64
  4. Step 4: Simplify right side
    742,143.99x = 299,141,150,569.98
  5. Step 5: Solve for x
    x = 299,141,150,569.98/742,143.99
  6. Step 6: Final answer
    x = 403,076.97

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Double scale
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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.