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Finding the Fourth Proportional to 550,552.62, 759,761.37 and 305,574.90

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Solution

The fourth proportional to 550,552.62, 759,761.37 and 305,574.90 is: 421,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,552.62 : 759,761.37 = 305,574.90 : x
  2. Step 2: Convert to fraction form
    550,552.62/759,761.37 = 305,574.90/x
  3. Step 3: Cross multiply
    550,552.62x = 759,761.37 × 305,574.90
  4. Step 4: Simplify right side
    550,552.62x = 232,164,004,661.61
  5. Step 5: Solve for x
    x = 232,164,004,661.61/550,552.62
  6. Step 6: Final answer
    x = 421,692.67

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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.