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Finding the Fourth Proportional to 550,263.62, 759,371.82 and 320,814.66

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Solution

The fourth proportional to 550,263.62, 759,371.82 and 320,814.66 is: 442,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,263.62 : 759,371.82 = 320,814.66 : x
  2. Step 2: Convert to fraction form
    550,263.62/759,371.82 = 320,814.66/x
  3. Step 3: Cross multiply
    550,263.62x = 759,371.82 × 320,814.66
  4. Step 4: Simplify right side
    550,263.62x = 243,617,612,246.88
  5. Step 5: Solve for x
    x = 243,617,612,246.88/550,263.62
  6. Step 6: Final answer
    x = 442,728.91

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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.