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Finding the Fourth Proportional to 454,359.98, 626,648.70 and 399,794.33

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Solution

The fourth proportional to 454,359.98, 626,648.70 and 399,794.33 is: 551,392.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,359.98 : 626,648.70 = 399,794.33 : x
  2. Step 2: Convert to fraction form
    454,359.98/626,648.70 = 399,794.33/x
  3. Step 3: Cross multiply
    454,359.98x = 626,648.70 × 399,794.33
  4. Step 4: Simplify right side
    454,359.98x = 250,530,600,227.72
  5. Step 5: Solve for x
    x = 250,530,600,227.72/454,359.98
  6. Step 6: Final answer
    x = 551,392.31

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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.