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Finding the Fourth Proportional to 538,996.40, 808,494.60 and 371,034.80

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Solution

The fourth proportional to 538,996.40, 808,494.60 and 371,034.80 is: 556,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,996.40 : 808,494.60 = 371,034.80 : x
  2. Step 2: Convert to fraction form
    538,996.40/808,494.60 = 371,034.80/x
  3. Step 3: Cross multiply
    538,996.40x = 808,494.60 × 371,034.80
  4. Step 4: Simplify right side
    538,996.40x = 299,979,632,212.08
  5. Step 5: Solve for x
    x = 299,979,632,212.08/538,996.40
  6. Step 6: Final answer
    x = 556,552.20

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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.