Home / 1,786,187.80-2,679,369.18-721,097.08

Finding the Fourth Proportional to 1,786,187.80, 2,679,369.18 and 721,097.08

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Solution

The fourth proportional to 1,786,187.80, 2,679,369.18 and 721,097.08 is: 1,081,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,187.80 : 2,679,369.18 = 721,097.08 : x
  2. Step 2: Convert to fraction form
    1,786,187.80/2,679,369.18 = 721,097.08/x
  3. Step 3: Cross multiply
    1,786,187.80x = 2,679,369.18 × 721,097.08
  4. Step 4: Simplify right side
    1,786,187.80x = 1,932,085,291,939.99
  5. Step 5: Solve for x
    x = 1,932,085,291,939.99/1,786,187.80
  6. Step 6: Final answer
    x = 1,081,680.94

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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.