Home / 2,118,428.20-3,176,475.90-854,828.20

Finding the Fourth Proportional to 2,118,428.20, 3,176,475.90 and 854,828.20

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Solution

The fourth proportional to 2,118,428.20, 3,176,475.90 and 854,828.20 is: 1,281,771.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,428.20 : 3,176,475.90 = 854,828.20 : x
  2. Step 2: Convert to fraction form
    2,118,428.20/3,176,475.90 = 854,828.20/x
  3. Step 3: Cross multiply
    2,118,428.20x = 3,176,475.90 × 854,828.20
  4. Step 4: Simplify right side
    2,118,428.20x = 2,715,341,175,940.38
  5. Step 5: Solve for x
    x = 2,715,341,175,940.38/2,118,428.20
  6. Step 6: Final answer
    x = 1,281,771.63

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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.