Home / 1,207,691.09-1,811,495.11-309,140.61

Finding the Fourth Proportional to 1,207,691.09, 1,811,495.11 and 309,140.61

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Solution

The fourth proportional to 1,207,691.09, 1,811,495.11 and 309,140.61 is: 463,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,691.09 : 1,811,495.11 = 309,140.61 : x
  2. Step 2: Convert to fraction form
    1,207,691.09/1,811,495.11 = 309,140.61/x
  3. Step 3: Cross multiply
    1,207,691.09x = 1,811,495.11 × 309,140.61
  4. Step 4: Simplify right side
    1,207,691.09x = 560,006,699,175.11
  5. Step 5: Solve for x
    x = 560,006,699,175.11/1,207,691.09
  6. Step 6: Final answer
    x = 463,700.28

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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.