Home / 1,080,709.20-1,621,985.40-482,590.80

Finding the Fourth Proportional to 1,080,709.20, 1,621,985.40 and 482,590.80

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Solution

The fourth proportional to 1,080,709.20, 1,621,985.40 and 482,590.80 is: 724,297.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,709.20 : 1,621,985.40 = 482,590.80 : x
  2. Step 2: Convert to fraction form
    1,080,709.20/1,621,985.40 = 482,590.80/x
  3. Step 3: Cross multiply
    1,080,709.20x = 1,621,985.40 × 482,590.80
  4. Step 4: Simplify right side
    1,080,709.20x = 782,755,231,774.32
  5. Step 5: Solve for x
    x = 782,755,231,774.32/1,080,709.20
  6. Step 6: Final answer
    x = 724,297.74

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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.