Home / 1,379,312.69-2,069,920.44-480,761.87

Finding the Fourth Proportional to 1,379,312.69, 2,069,920.44 and 480,761.87

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Solution

The fourth proportional to 1,379,312.69, 2,069,920.44 and 480,761.87 is: 721,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,312.69 : 2,069,920.44 = 480,761.87 : x
  2. Step 2: Convert to fraction form
    1,379,312.69/2,069,920.44 = 480,761.87/x
  3. Step 3: Cross multiply
    1,379,312.69x = 2,069,920.44 × 480,761.87
  4. Step 4: Simplify right side
    1,379,312.69x = 995,138,811,136.02
  5. Step 5: Solve for x
    x = 995,138,811,136.02/1,379,312.69
  6. Step 6: Final answer
    x = 721,474.41

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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.