Home / 918,015.20-1,377,022.80-669,183.20

Finding the Fourth Proportional to 918,015.20, 1,377,022.80 and 669,183.20

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Solution

The fourth proportional to 918,015.20, 1,377,022.80 and 669,183.20 is: 1,003,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,015.20 : 1,377,022.80 = 669,183.20 : x
  2. Step 2: Convert to fraction form
    918,015.20/1,377,022.80 = 669,183.20/x
  3. Step 3: Cross multiply
    918,015.20x = 1,377,022.80 × 669,183.20
  4. Step 4: Simplify right side
    918,015.20x = 921,480,523,776.96
  5. Step 5: Solve for x
    x = 921,480,523,776.96/918,015.20
  6. Step 6: Final answer
    x = 1,003,774.80

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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.