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Finding the Fourth Proportional to 700,548.25, 966,757.68 and 398,742.25

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Solution

The fourth proportional to 700,548.25, 966,757.68 and 398,742.25 is: 550,264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,548.25 : 966,757.68 = 398,742.25 : x
  2. Step 2: Convert to fraction form
    700,548.25/966,757.68 = 398,742.25/x
  3. Step 3: Cross multiply
    700,548.25x = 966,757.68 × 398,742.25
  4. Step 4: Simplify right side
    700,548.25x = 385,487,132,527.98
  5. Step 5: Solve for x
    x = 385,487,132,527.98/700,548.25
  6. Step 6: Final answer
    x = 550,264.93

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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.