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Finding the Fourth Proportional to 550,462.27, 759,577.20 and 308,695.09

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Solution

The fourth proportional to 550,462.27, 759,577.20 and 308,695.09 is: 425,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,462.27 : 759,577.20 = 308,695.09 : x
  2. Step 2: Convert to fraction form
    550,462.27/759,577.20 = 308,695.09/x
  3. Step 3: Cross multiply
    550,462.27x = 759,577.20 × 308,695.09
  4. Step 4: Simplify right side
    550,462.27x = 234,477,750,572.47
  5. Step 5: Solve for x
    x = 234,477,750,572.47/550,462.27
  6. Step 6: Final answer
    x = 425,965.16

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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.