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Finding the Fourth Proportional to 538,704.60, 808,056.90 and 349,747.80

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Solution

The fourth proportional to 538,704.60, 808,056.90 and 349,747.80 is: 524,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,704.60 : 808,056.90 = 349,747.80 : x
  2. Step 2: Convert to fraction form
    538,704.60/808,056.90 = 349,747.80/x
  3. Step 3: Cross multiply
    538,704.60x = 808,056.90 × 349,747.80
  4. Step 4: Simplify right side
    538,704.60x = 282,616,123,049.82
  5. Step 5: Solve for x
    x = 282,616,123,049.82/538,704.60
  6. Step 6: Final answer
    x = 524,621.70

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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.