Home / 643,324.20-964,694.70-243,832.20

Finding the Fourth Proportional to 643,324.20, 964,694.70 and 243,832.20

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Solution

The fourth proportional to 643,324.20, 964,694.70 and 243,832.20 is: 365,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,324.20 : 964,694.70 = 243,832.20 : x
  2. Step 2: Convert to fraction form
    643,324.20/964,694.70 = 243,832.20/x
  3. Step 3: Cross multiply
    643,324.20x = 964,694.70 × 243,832.20
  4. Step 4: Simplify right side
    643,324.20x = 235,223,631,029.34
  5. Step 5: Solve for x
    x = 235,223,631,029.34/643,324.20
  6. Step 6: Final answer
    x = 365,637.78

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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.