Home / 1,207,693.09-1,811,498.11-309,142.61

Finding the Fourth Proportional to 1,207,693.09, 1,811,498.11 and 309,142.61

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Solution

The fourth proportional to 1,207,693.09, 1,811,498.11 and 309,142.61 is: 463,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,693.09 : 1,811,498.11 = 309,142.61 : x
  2. Step 2: Convert to fraction form
    1,207,693.09/1,811,498.11 = 309,142.61/x
  3. Step 3: Cross multiply
    1,207,693.09x = 1,811,498.11 × 309,142.61
  4. Step 4: Simplify right side
    1,207,693.09x = 560,011,253,735.47
  5. Step 5: Solve for x
    x = 560,011,253,735.47/1,207,693.09
  6. Step 6: Final answer
    x = 463,703.29

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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.