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Finding the Fourth Proportional to 550,625.81, 825,936.75 and 310,630.84

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Solution

The fourth proportional to 550,625.81, 825,936.75 and 310,630.84 is: 465,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,625.81 : 825,936.75 = 310,630.84 : x
  2. Step 2: Convert to fraction form
    550,625.81/825,936.75 = 310,630.84/x
  3. Step 3: Cross multiply
    550,625.81x = 825,936.75 × 310,630.84
  4. Step 4: Simplify right side
    550,625.81x = 256,561,424,374.53
  5. Step 5: Solve for x
    x = 256,561,424,374.53/550,625.81
  6. Step 6: Final answer
    x = 465,945.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.