Home / 648,471.27-972,709.76-269,391.69

Finding the Fourth Proportional to 648,471.27, 972,709.76 and 269,391.69

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Solution

The fourth proportional to 648,471.27, 972,709.76 and 269,391.69 is: 404,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,471.27 : 972,709.76 = 269,391.69 : x
  2. Step 2: Convert to fraction form
    648,471.27/972,709.76 = 269,391.69/x
  3. Step 3: Cross multiply
    648,471.27x = 972,709.76 × 269,391.69
  4. Step 4: Simplify right side
    648,471.27x = 262,039,926,125.89
  5. Step 5: Solve for x
    x = 262,039,926,125.89/648,471.27
  6. Step 6: Final answer
    x = 404,088.72

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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.