Home / 1,205,612.20-1,808,720.70-531,821.80

Finding the Fourth Proportional to 1,205,612.20, 1,808,720.70 and 531,821.80

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Solution

The fourth proportional to 1,205,612.20, 1,808,720.70 and 531,821.80 is: 797,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,612.20 : 1,808,720.70 = 531,821.80 : x
  2. Step 2: Convert to fraction form
    1,205,612.20/1,808,720.70 = 531,821.80/x
  3. Step 3: Cross multiply
    1,205,612.20x = 1,808,720.70 × 531,821.80
  4. Step 4: Simplify right side
    1,205,612.20x = 961,917,098,371.26
  5. Step 5: Solve for x
    x = 961,917,098,371.26/1,205,612.20
  6. Step 6: Final answer
    x = 797,866.10

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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.