Home / 742,144.99-1,113,214.75-268,719.64

Finding the Fourth Proportional to 742,144.99, 1,113,214.75 and 268,719.64

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Solution

The fourth proportional to 742,144.99, 1,113,214.75 and 268,719.64 is: 403,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,144.99 : 1,113,214.75 = 268,719.64 : x
  2. Step 2: Convert to fraction form
    742,144.99/1,113,214.75 = 268,719.64/x
  3. Step 3: Cross multiply
    742,144.99x = 1,113,214.75 × 268,719.64
  4. Step 4: Simplify right side
    742,144.99x = 299,142,666,862.69
  5. Step 5: Solve for x
    x = 299,142,666,862.69/742,144.99
  6. Step 6: Final answer
    x = 403,078.47

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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.