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Finding the Fourth Proportional to 624,713.70, 936,793.53 and 287,672.70

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Solution

The fourth proportional to 624,713.70, 936,793.53 and 287,672.70 is: 431,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,713.70 : 936,793.53 = 287,672.70 : x
  2. Step 2: Convert to fraction form
    624,713.70/936,793.53 = 287,672.70/x
  3. Step 3: Cross multiply
    624,713.70x = 936,793.53 × 287,672.70
  4. Step 4: Simplify right side
    624,713.70x = 269,489,924,117.63
  5. Step 5: Solve for x
    x = 269,489,924,117.63/624,713.70
  6. Step 6: Final answer
    x = 431,381.49

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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.