Home / 1,377,860.21-2,066,836.94-479,309.71

Finding the Fourth Proportional to 1,377,860.21, 2,066,836.94 and 479,309.71

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Solution

The fourth proportional to 1,377,860.21, 2,066,836.94 and 479,309.71 is: 718,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,860.21 : 2,066,836.94 = 479,309.71 : x
  2. Step 2: Convert to fraction form
    1,377,860.21/2,066,836.94 = 479,309.71/x
  3. Step 3: Cross multiply
    1,377,860.21x = 2,066,836.94 × 479,309.71
  4. Step 4: Simplify right side
    1,377,860.21x = 990,655,014,328.69
  5. Step 5: Solve for x
    x = 990,655,014,328.69/1,377,860.21
  6. Step 6: Final answer
    x = 718,980.78

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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.