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Finding the Fourth Proportional to 550,974.84, 760,304 and 305,973.42

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Solution

The fourth proportional to 550,974.84, 760,304 and 305,973.42 is: 422,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,974.84 : 760,304 = 305,973.42 : x
  2. Step 2: Convert to fraction form
    550,974.84/760,304 = 305,973.42/x
  3. Step 3: Cross multiply
    550,974.84x = 760,304 × 305,973.42
  4. Step 4: Simplify right side
    550,974.84x = 232,632,815,119.68
  5. Step 5: Solve for x
    x = 232,632,815,119.68/550,974.84
  6. Step 6: Final answer
    x = 422,220.40

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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.