Home / 598,621.20-898,369.20-421,474.20

Finding the Fourth Proportional to 598,621.20, 898,369.20 and 421,474.20

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Solution

The fourth proportional to 598,621.20, 898,369.20 and 421,474.20 is: 632,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,621.20 : 898,369.20 = 421,474.20 : x
  2. Step 2: Convert to fraction form
    598,621.20/898,369.20 = 421,474.20/x
  3. Step 3: Cross multiply
    598,621.20x = 898,369.20 × 421,474.20
  4. Step 4: Simplify right side
    598,621.20x = 378,639,439,874.64
  5. Step 5: Solve for x
    x = 378,639,439,874.64/598,621.20
  6. Step 6: Final answer
    x = 632,519.26

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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.