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Finding the Fourth Proportional to 538,467.90, 807,701.85 and 412,496.70

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Solution

The fourth proportional to 538,467.90, 807,701.85 and 412,496.70 is: 618,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,467.90 : 807,701.85 = 412,496.70 : x
  2. Step 2: Convert to fraction form
    538,467.90/807,701.85 = 412,496.70/x
  3. Step 3: Cross multiply
    538,467.90x = 807,701.85 × 412,496.70
  4. Step 4: Simplify right side
    538,467.90x = 333,174,347,708.90
  5. Step 5: Solve for x
    x = 333,174,347,708.90/538,467.90
  6. Step 6: Final answer
    x = 618,745.05

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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.