Home / 1,192,321.05-1,788,492.38-339,392.36

Finding the Fourth Proportional to 1,192,321.05, 1,788,492.38 and 339,392.36

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Solution

The fourth proportional to 1,192,321.05, 1,788,492.38 and 339,392.36 is: 509,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,321.05 : 1,788,492.38 = 339,392.36 : x
  2. Step 2: Convert to fraction form
    1,192,321.05/1,788,492.38 = 339,392.36/x
  3. Step 3: Cross multiply
    1,192,321.05x = 1,788,492.38 × 339,392.36
  4. Step 4: Simplify right side
    1,192,321.05x = 607,000,655,009.93
  5. Step 5: Solve for x
    x = 607,000,655,009.93/1,192,321.05
  6. Step 6: Final answer
    x = 509,091.62

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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.