Home / 1,120,977-1,681,154.16-311,175.24

Finding the Fourth Proportional to 1,120,977, 1,681,154.16 and 311,175.24

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Solution

The fourth proportional to 1,120,977, 1,681,154.16 and 311,175.24 is: 466,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,977 : 1,681,154.16 = 311,175.24 : x
  2. Step 2: Convert to fraction form
    1,120,977/1,681,154.16 = 311,175.24/x
  3. Step 3: Cross multiply
    1,120,977x = 1,681,154.16 × 311,175.24
  4. Step 4: Simplify right side
    1,120,977x = 523,133,549,215.00
  5. Step 5: Solve for x
    x = 523,133,549,215.00/1,120,977
  6. Step 6: Final answer
    x = 466,676.43

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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.