Home / 670,423.62-1,005,666.41-221,183.74

Finding the Fourth Proportional to 670,423.62, 1,005,666.41 and 221,183.74

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Solution

The fourth proportional to 670,423.62, 1,005,666.41 and 221,183.74 is: 331,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,423.62 : 1,005,666.41 = 221,183.74 : x
  2. Step 2: Convert to fraction form
    670,423.62/1,005,666.41 = 221,183.74/x
  3. Step 3: Cross multiply
    670,423.62x = 1,005,666.41 × 221,183.74
  4. Step 4: Simplify right side
    670,423.62x = 222,437,061,779.85
  5. Step 5: Solve for x
    x = 222,437,061,779.85/670,423.62
  6. Step 6: Final answer
    x = 331,785.84

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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.