Home / 2,690,790.72-4,036,200.66-669,034.68

Finding the Fourth Proportional to 2,690,790.72, 4,036,200.66 and 669,034.68

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Solution

The fourth proportional to 2,690,790.72, 4,036,200.66 and 669,034.68 is: 1,003,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690,790.72 : 4,036,200.66 = 669,034.68 : x
  2. Step 2: Convert to fraction form
    2,690,790.72/4,036,200.66 = 669,034.68/x
  3. Step 3: Cross multiply
    2,690,790.72x = 4,036,200.66 × 669,034.68
  4. Step 4: Simplify right side
    2,690,790.72x = 2,700,358,216,978.89
  5. Step 5: Solve for x
    x = 2,700,358,216,978.89/2,690,790.72
  6. Step 6: Final answer
    x = 1,003,555.65

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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.