Home / 1,980,343.72-2,970,672.54-560,408.68

Finding the Fourth Proportional to 1,980,343.72, 2,970,672.54 and 560,408.68

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Solution

The fourth proportional to 1,980,343.72, 2,970,672.54 and 560,408.68 is: 840,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,343.72 : 2,970,672.54 = 560,408.68 : x
  2. Step 2: Convert to fraction form
    1,980,343.72/2,970,672.54 = 560,408.68/x
  3. Step 3: Cross multiply
    1,980,343.72x = 2,970,672.54 × 560,408.68
  4. Step 4: Simplify right side
    1,980,343.72x = 1,664,790,676,853.65
  5. Step 5: Solve for x
    x = 1,664,790,676,853.65/1,980,343.72
  6. Step 6: Final answer
    x = 840,657.44

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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.