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Finding the Fourth Proportional to 624,934.20, 937,401.30 and 550,138.80

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Solution

The fourth proportional to 624,934.20, 937,401.30 and 550,138.80 is: 825,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,934.20 : 937,401.30 = 550,138.80 : x
  2. Step 2: Convert to fraction form
    624,934.20/937,401.30 = 550,138.80/x
  3. Step 3: Cross multiply
    624,934.20x = 937,401.30 × 550,138.80
  4. Step 4: Simplify right side
    624,934.20x = 515,700,826,300.44
  5. Step 5: Solve for x
    x = 515,700,826,300.44/624,934.20
  6. Step 6: Final answer
    x = 825,208.20

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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.