Home / 742,724.55-1,114,162.34-256,343.39

Finding the Fourth Proportional to 742,724.55, 1,114,162.34 and 256,343.39

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Solution

The fourth proportional to 742,724.55, 1,114,162.34 and 256,343.39 is: 384,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,724.55 : 1,114,162.34 = 256,343.39 : x
  2. Step 2: Convert to fraction form
    742,724.55/1,114,162.34 = 256,343.39/x
  3. Step 3: Cross multiply
    742,724.55x = 1,114,162.34 × 256,343.39
  4. Step 4: Simplify right side
    742,724.55x = 285,608,150,796.83
  5. Step 5: Solve for x
    x = 285,608,150,796.83/742,724.55
  6. Step 6: Final answer
    x = 384,541.15

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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.