Home / 1,192,502.40-1,790,503.20-720,110.40

Finding the Fourth Proportional to 1,192,502.40, 1,790,503.20 and 720,110.40

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Solution

The fourth proportional to 1,192,502.40, 1,790,503.20 and 720,110.40 is: 1,081,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,502.40 : 1,790,503.20 = 720,110.40 : x
  2. Step 2: Convert to fraction form
    1,192,502.40/1,790,503.20 = 720,110.40/x
  3. Step 3: Cross multiply
    1,192,502.40x = 1,790,503.20 × 720,110.40
  4. Step 4: Simplify right side
    1,192,502.40x = 1,289,359,975,553.28
  5. Step 5: Solve for x
    x = 1,289,359,975,553.28/1,192,502.40
  6. Step 6: Final answer
    x = 1,081,222.12

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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.