Home / 742,249.44-1,024,302.96-402,717.60

Finding the Fourth Proportional to 742,249.44, 1,024,302.96 and 402,717.60

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Solution

The fourth proportional to 742,249.44, 1,024,302.96 and 402,717.60 is: 555,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,249.44 : 1,024,302.96 = 402,717.60 : x
  2. Step 2: Convert to fraction form
    742,249.44/1,024,302.96 = 402,717.60/x
  3. Step 3: Cross multiply
    742,249.44x = 1,024,302.96 × 402,717.60
  4. Step 4: Simplify right side
    742,249.44x = 412,504,829,724.10
  5. Step 5: Solve for x
    x = 412,504,829,724.10/742,249.44
  6. Step 6: Final answer
    x = 555,749.60

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.