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Finding the Fourth Proportional to 550,014.88, 759,066.96 and 308,293.60

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Solution

The fourth proportional to 550,014.88, 759,066.96 and 308,293.60 is: 425,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,014.88 : 759,066.96 = 308,293.60 : x
  2. Step 2: Convert to fraction form
    550,014.88/759,066.96 = 308,293.60/x
  3. Step 3: Cross multiply
    550,014.88x = 759,066.96 × 308,293.60
  4. Step 4: Simplify right side
    550,014.88x = 234,015,485,739.46
  5. Step 5: Solve for x
    x = 234,015,485,739.46/550,014.88
  6. Step 6: Final answer
    x = 425,471.19

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1.5x scale

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.