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Finding the Fourth Proportional to 622,314.78, 858,800.50 and 350,329.74

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Solution

The fourth proportional to 622,314.78, 858,800.50 and 350,329.74 is: 483,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,314.78 : 858,800.50 = 350,329.74 : x
  2. Step 2: Convert to fraction form
    622,314.78/858,800.50 = 350,329.74/x
  3. Step 3: Cross multiply
    622,314.78x = 858,800.50 × 350,329.74
  4. Step 4: Simplify right side
    622,314.78x = 300,863,355,876.87
  5. Step 5: Solve for x
    x = 300,863,355,876.87/622,314.78
  6. Step 6: Final answer
    x = 483,458.48

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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.