Home / 402,621.80-603,932.70-215,997.80

Finding the Fourth Proportional to 402,621.80, 603,932.70 and 215,997.80

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Solution

The fourth proportional to 402,621.80, 603,932.70 and 215,997.80 is: 323,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,621.80 : 603,932.70 = 215,997.80 : x
  2. Step 2: Convert to fraction form
    402,621.80/603,932.70 = 215,997.80/x
  3. Step 3: Cross multiply
    402,621.80x = 603,932.70 × 215,997.80
  4. Step 4: Simplify right side
    402,621.80x = 130,448,134,548.06
  5. Step 5: Solve for x
    x = 130,448,134,548.06/402,621.80
  6. Step 6: Final answer
    x = 323,996.70

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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.