Home / 402,579.20-603,941.70-202,395.80

Finding the Fourth Proportional to 402,579.20, 603,941.70 and 202,395.80

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Solution

The fourth proportional to 402,579.20, 603,941.70 and 202,395.80 is: 303,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,579.20 : 603,941.70 = 202,395.80 : x
  2. Step 2: Convert to fraction form
    402,579.20/603,941.70 = 202,395.80/x
  3. Step 3: Cross multiply
    402,579.20x = 603,941.70 × 202,395.80
  4. Step 4: Simplify right side
    402,579.20x = 122,235,263,524.86
  5. Step 5: Solve for x
    x = 122,235,263,524.86/402,579.20
  6. Step 6: Final answer
    x = 303,630.35

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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.