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Finding the Fourth Proportional to 538,333.20, 805,944.60 and 328,381.20

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Solution

The fourth proportional to 538,333.20, 805,944.60 and 328,381.20 is: 491,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,333.20 : 805,944.60 = 328,381.20 : x
  2. Step 2: Convert to fraction form
    538,333.20/805,944.60 = 328,381.20/x
  3. Step 3: Cross multiply
    538,333.20x = 805,944.60 × 328,381.20
  4. Step 4: Simplify right side
    538,333.20x = 264,657,054,881.52
  5. Step 5: Solve for x
    x = 264,657,054,881.52/538,333.20
  6. Step 6: Final answer
    x = 491,623.13

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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.