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Finding the Fourth Proportional to 550,501.26, 759,546.63 and 317,870.88

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Solution

The fourth proportional to 550,501.26, 759,546.63 and 317,870.88 is: 438,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,501.26 : 759,546.63 = 317,870.88 : x
  2. Step 2: Convert to fraction form
    550,501.26/759,546.63 = 317,870.88/x
  3. Step 3: Cross multiply
    550,501.26x = 759,546.63 × 317,870.88
  4. Step 4: Simplify right side
    550,501.26x = 241,437,755,679.13
  5. Step 5: Solve for x
    x = 241,437,755,679.13/550,501.26
  6. Step 6: Final answer
    x = 438,578.03

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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.