Home / 990,900.45-1,486,350.68-672,035.85

Finding the Fourth Proportional to 990,900.45, 1,486,350.68 and 672,035.85

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Solution

The fourth proportional to 990,900.45, 1,486,350.68 and 672,035.85 is: 1,008,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,900.45 : 1,486,350.68 = 672,035.85 : x
  2. Step 2: Convert to fraction form
    990,900.45/1,486,350.68 = 672,035.85/x
  3. Step 3: Cross multiply
    990,900.45x = 1,486,350.68 × 672,035.85
  4. Step 4: Simplify right side
    990,900.45x = 998,880,939,271.70
  5. Step 5: Solve for x
    x = 998,880,939,271.70/990,900.45
  6. Step 6: Final answer
    x = 1,008,053.78

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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.