Home / 1,294,535.72-1,786,519.78-721,580.04

Finding the Fourth Proportional to 1,294,535.72, 1,786,519.78 and 721,580.04

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Solution

The fourth proportional to 1,294,535.72, 1,786,519.78 and 721,580.04 is: 995,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,535.72 : 1,786,519.78 = 721,580.04 : x
  2. Step 2: Convert to fraction form
    1,294,535.72/1,786,519.78 = 721,580.04/x
  3. Step 3: Cross multiply
    1,294,535.72x = 1,786,519.78 × 721,580.04
  4. Step 4: Simplify right side
    1,294,535.72x = 1,289,117,014,313.19
  5. Step 5: Solve for x
    x = 1,289,117,014,313.19/1,294,535.72
  6. Step 6: Final answer
    x = 995,814.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.