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Finding the Fourth Proportional to 622,505.86, 934,050.39 and 306,790.54

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Solution

The fourth proportional to 622,505.86, 934,050.39 and 306,790.54 is: 460,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,505.86 : 934,050.39 = 306,790.54 : x
  2. Step 2: Convert to fraction form
    622,505.86/934,050.39 = 306,790.54/x
  3. Step 3: Cross multiply
    622,505.86x = 934,050.39 × 306,790.54
  4. Step 4: Simplify right side
    622,505.86x = 286,557,823,535.31
  5. Step 5: Solve for x
    x = 286,557,823,535.31/622,505.86
  6. Step 6: Final answer
    x = 460,329.52

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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.