Home / 1,388,777.90-2,082,956.38-377,978.63

Finding the Fourth Proportional to 1,388,777.90, 2,082,956.38 and 377,978.63

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Solution

The fourth proportional to 1,388,777.90, 2,082,956.38 and 377,978.63 is: 566,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,777.90 : 2,082,956.38 = 377,978.63 : x
  2. Step 2: Convert to fraction form
    1,388,777.90/2,082,956.38 = 377,978.63/x
  3. Step 3: Cross multiply
    1,388,777.90x = 2,082,956.38 × 377,978.63
  4. Step 4: Simplify right side
    1,388,777.90x = 787,312,987,502.43
  5. Step 5: Solve for x
    x = 787,312,987,502.43/1,388,777.90
  6. Step 6: Final answer
    x = 566,910.66

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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.