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Finding the Fourth Proportional to 550,604.37, 759,761.31 and 308,877.69

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Solution

The fourth proportional to 550,604.37, 759,761.31 and 308,877.69 is: 426,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,604.37 : 759,761.31 = 308,877.69 : x
  2. Step 2: Convert to fraction form
    550,604.37/759,761.31 = 308,877.69/x
  3. Step 3: Cross multiply
    550,604.37x = 759,761.31 × 308,877.69
  4. Step 4: Simplify right side
    550,604.37x = 234,673,318,384.17
  5. Step 5: Solve for x
    x = 234,673,318,384.17/550,604.37
  6. Step 6: Final answer
    x = 426,210.42

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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.