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Finding the Fourth Proportional to 538,344.60, 807,128.10 and 301,759.80

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Solution

The fourth proportional to 538,344.60, 807,128.10 and 301,759.80 is: 452,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,344.60 : 807,128.10 = 301,759.80 : x
  2. Step 2: Convert to fraction form
    538,344.60/807,128.10 = 301,759.80/x
  3. Step 3: Cross multiply
    538,344.60x = 807,128.10 × 301,759.80
  4. Step 4: Simplify right side
    538,344.60x = 243,558,814,030.38
  5. Step 5: Solve for x
    x = 243,558,814,030.38/538,344.60
  6. Step 6: Final answer
    x = 452,421.76

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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.