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Finding the Fourth Proportional to 790,893, 1,186,094.02 and 285,388.38

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Solution

The fourth proportional to 790,893, 1,186,094.02 and 285,388.38 is: 427,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,893 : 1,186,094.02 = 285,388.38 : x
  2. Step 2: Convert to fraction form
    790,893/1,186,094.02 = 285,388.38/x
  3. Step 3: Cross multiply
    790,893x = 1,186,094.02 × 285,388.38
  4. Step 4: Simplify right side
    790,893x = 338,497,450,895.49
  5. Step 5: Solve for x
    x = 338,497,450,895.49/790,893
  6. Step 6: Final answer
    x = 427,993.99

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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.