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Finding the Fourth Proportional to 538,117.20, 807,175.80 and 301,921.20

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Solution

The fourth proportional to 538,117.20, 807,175.80 and 301,921.20 is: 452,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,117.20 : 807,175.80 = 301,921.20 : x
  2. Step 2: Convert to fraction form
    538,117.20/807,175.80 = 301,921.20/x
  3. Step 3: Cross multiply
    538,117.20x = 807,175.80 × 301,921.20
  4. Step 4: Simplify right side
    538,117.20x = 243,703,486,146.96
  5. Step 5: Solve for x
    x = 243,703,486,146.96/538,117.20
  6. Step 6: Final answer
    x = 452,881.80

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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.