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Finding the Fourth Proportional to 562,019.78, 775,586.74 and 303,896.11

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Solution

The fourth proportional to 562,019.78, 775,586.74 and 303,896.11 is: 419,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,019.78 : 775,586.74 = 303,896.11 : x
  2. Step 2: Convert to fraction form
    562,019.78/775,586.74 = 303,896.11/x
  3. Step 3: Cross multiply
    562,019.78x = 775,586.74 × 303,896.11
  4. Step 4: Simplify right side
    562,019.78x = 235,697,790,397.57
  5. Step 5: Solve for x
    x = 235,697,790,397.57/562,019.78
  6. Step 6: Final answer
    x = 419,376.33

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1.5x scale

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.