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Finding the Fourth Proportional to 660,304.89, 990,297.14 and 304,976.97

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Solution

The fourth proportional to 660,304.89, 990,297.14 and 304,976.97 is: 457,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,304.89 : 990,297.14 = 304,976.97 : x
  2. Step 2: Convert to fraction form
    660,304.89/990,297.14 = 304,976.97/x
  3. Step 3: Cross multiply
    660,304.89x = 990,297.14 × 304,976.97
  4. Step 4: Simplify right side
    660,304.89x = 302,017,819,631.98
  5. Step 5: Solve for x
    x = 302,017,819,631.98/660,304.89
  6. Step 6: Final answer
    x = 457,391.46

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Similar ratio
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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.