Home / 1,120,977.50-1,681,154.91-311,175.74

Finding the Fourth Proportional to 1,120,977.50, 1,681,154.91 and 311,175.74

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Solution

The fourth proportional to 1,120,977.50, 1,681,154.91 and 311,175.74 is: 466,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,977.50 : 1,681,154.91 = 311,175.74 : x
  2. Step 2: Convert to fraction form
    1,120,977.50/1,681,154.91 = 311,175.74/x
  3. Step 3: Cross multiply
    1,120,977.50x = 1,681,154.91 × 311,175.74
  4. Step 4: Simplify right side
    1,120,977.50x = 523,134,623,173.88
  5. Step 5: Solve for x
    x = 523,134,623,173.88/1,120,977.50
  6. Step 6: Final answer
    x = 466,677.18

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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.