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Finding the Fourth Proportional to 622,299.28, 858,763.20 and 350,366.56

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Solution

The fourth proportional to 622,299.28, 858,763.20 and 350,366.56 is: 483,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,299.28 : 858,763.20 = 350,366.56 : x
  2. Step 2: Convert to fraction form
    622,299.28/858,763.20 = 350,366.56/x
  3. Step 3: Cross multiply
    622,299.28x = 858,763.20 × 350,366.56
  4. Step 4: Simplify right side
    622,299.28x = 300,881,908,238.59
  5. Step 5: Solve for x
    x = 300,881,908,238.59/622,299.28
  6. Step 6: Final answer
    x = 483,500.33

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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.