Home / 1,072,210.80-1,606,933.80-821,650.80

Finding the Fourth Proportional to 1,072,210.80, 1,606,933.80 and 821,650.80

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Solution

The fourth proportional to 1,072,210.80, 1,606,933.80 and 821,650.80 is: 1,231,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,210.80 : 1,606,933.80 = 821,650.80 : x
  2. Step 2: Convert to fraction form
    1,072,210.80/1,606,933.80 = 821,650.80/x
  3. Step 3: Cross multiply
    1,072,210.80x = 1,606,933.80 × 821,650.80
  4. Step 4: Simplify right side
    1,072,210.80x = 1,320,338,442,317.04
  5. Step 5: Solve for x
    x = 1,320,338,442,317.04/1,072,210.80
  6. Step 6: Final answer
    x = 1,231,416.85

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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.