Home / 2,118,666.30-3,175,234.65-981,296.70

Finding the Fourth Proportional to 2,118,666.30, 3,175,234.65 and 981,296.70

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Solution

The fourth proportional to 2,118,666.30, 3,175,234.65 and 981,296.70 is: 1,470,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,666.30 : 3,175,234.65 = 981,296.70 : x
  2. Step 2: Convert to fraction form
    2,118,666.30/3,175,234.65 = 981,296.70/x
  3. Step 3: Cross multiply
    2,118,666.30x = 3,175,234.65 × 981,296.70
  4. Step 4: Simplify right side
    2,118,666.30x = 3,115,847,283,770.66
  5. Step 5: Solve for x
    x = 3,115,847,283,770.66/2,118,666.30
  6. Step 6: Final answer
    x = 1,470,664.49

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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.