Home / 1,421,850.15-1,961,674.13-809,569.86

Finding the Fourth Proportional to 1,421,850.15, 1,961,674.13 and 809,569.86

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Solution

The fourth proportional to 1,421,850.15, 1,961,674.13 and 809,569.86 is: 1,116,933.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,850.15 : 1,961,674.13 = 809,569.86 : x
  2. Step 2: Convert to fraction form
    1,421,850.15/1,961,674.13 = 809,569.86/x
  3. Step 3: Cross multiply
    1,421,850.15x = 1,961,674.13 × 809,569.86
  4. Step 4: Simplify right side
    1,421,850.15x = 1,588,112,246,741.87
  5. Step 5: Solve for x
    x = 1,588,112,246,741.87/1,421,850.15
  6. Step 6: Final answer
    x = 1,116,933.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.