Home / 548,621.20-822,931.80-455,309.20

Finding the Fourth Proportional to 548,621.20, 822,931.80 and 455,309.20

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Solution

The fourth proportional to 548,621.20, 822,931.80 and 455,309.20 is: 682,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,621.20 : 822,931.80 = 455,309.20 : x
  2. Step 2: Convert to fraction form
    548,621.20/822,931.80 = 455,309.20/x
  3. Step 3: Cross multiply
    548,621.20x = 822,931.80 × 455,309.20
  4. Step 4: Simplify right side
    548,621.20x = 374,688,419,512.56
  5. Step 5: Solve for x
    x = 374,688,419,512.56/548,621.20
  6. Step 6: Final answer
    x = 682,963.80

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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.