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Finding the Fourth Proportional to 700,549.25, 966,759.06 and 398,743.25

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Solution

The fourth proportional to 700,549.25, 966,759.06 and 398,743.25 is: 550,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,549.25 : 966,759.06 = 398,743.25 : x
  2. Step 2: Convert to fraction form
    700,549.25/966,759.06 = 398,743.25/x
  3. Step 3: Cross multiply
    700,549.25x = 966,759.06 × 398,743.25
  4. Step 4: Simplify right side
    700,549.25x = 385,488,649,551.35
  5. Step 5: Solve for x
    x = 385,488,649,551.35/700,549.25
  6. Step 6: Final answer
    x = 550,266.31

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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.