Home / 742,781.06-1,114,245.42-269,503.32

Finding the Fourth Proportional to 742,781.06, 1,114,245.42 and 269,503.32

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Solution

The fourth proportional to 742,781.06, 1,114,245.42 and 269,503.32 is: 404,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,781.06 : 1,114,245.42 = 269,503.32 : x
  2. Step 2: Convert to fraction form
    742,781.06/1,114,245.42 = 269,503.32/x
  3. Step 3: Cross multiply
    742,781.06x = 1,114,245.42 × 269,503.32
  4. Step 4: Simplify right side
    742,781.06x = 300,292,839,984.79
  5. Step 5: Solve for x
    x = 300,292,839,984.79/742,781.06
  6. Step 6: Final answer
    x = 404,281.77

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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.