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Finding the Fourth Proportional to 550,550.61, 759,758.60 and 305,572.89

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Solution

The fourth proportional to 550,550.61, 759,758.60 and 305,572.89 is: 421,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,550.61 : 759,758.60 = 305,572.89 : x
  2. Step 2: Convert to fraction form
    550,550.61/759,758.60 = 305,572.89/x
  3. Step 3: Cross multiply
    550,550.61x = 759,758.60 × 305,572.89
  4. Step 4: Simplify right side
    550,550.61x = 232,161,631,104.35
  5. Step 5: Solve for x
    x = 232,161,631,104.35/550,550.61
  6. Step 6: Final answer
    x = 421,689.90

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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.