Home / 637,900.20-956,979.90-217,218.60

Finding the Fourth Proportional to 637,900.20, 956,979.90 and 217,218.60

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Solution

The fourth proportional to 637,900.20, 956,979.90 and 217,218.60 is: 325,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,900.20 : 956,979.90 = 217,218.60 : x
  2. Step 2: Convert to fraction form
    637,900.20/956,979.90 = 217,218.60/x
  3. Step 3: Cross multiply
    637,900.20x = 956,979.90 × 217,218.60
  4. Step 4: Simplify right side
    637,900.20x = 207,873,834,106.14
  5. Step 5: Solve for x
    x = 207,873,834,106.14/637,900.20
  6. Step 6: Final answer
    x = 325,872.03

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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.