Home / 513,911.26-709,273.55-296,078.46

Finding the Fourth Proportional to 513,911.26, 709,273.55 and 296,078.46

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Solution

The fourth proportional to 513,911.26, 709,273.55 and 296,078.46 is: 408,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,911.26 : 709,273.55 = 296,078.46 : x
  2. Step 2: Convert to fraction form
    513,911.26/709,273.55 = 296,078.46/x
  3. Step 3: Cross multiply
    513,911.26x = 709,273.55 × 296,078.46
  4. Step 4: Simplify right side
    513,911.26x = 210,000,617,592.45
  5. Step 5: Solve for x
    x = 210,000,617,592.45/513,911.26
  6. Step 6: Final answer
    x = 408,632.06

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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.