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Finding the Fourth Proportional to 538,812.40, 808,218.60 and 495,072.40

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Solution

The fourth proportional to 538,812.40, 808,218.60 and 495,072.40 is: 742,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,812.40 : 808,218.60 = 495,072.40 : x
  2. Step 2: Convert to fraction form
    538,812.40/808,218.60 = 495,072.40/x
  3. Step 3: Cross multiply
    538,812.40x = 808,218.60 × 495,072.40
  4. Step 4: Simplify right side
    538,812.40x = 400,126,722,026.64
  5. Step 5: Solve for x
    x = 400,126,722,026.64/538,812.40
  6. Step 6: Final answer
    x = 742,608.60

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Similar ratio
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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.