Home / 1,399,580.51-2,099,356.92-641,206.82

Finding the Fourth Proportional to 1,399,580.51, 2,099,356.92 and 641,206.82

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Solution

The fourth proportional to 1,399,580.51, 2,099,356.92 and 641,206.82 is: 961,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,580.51 : 2,099,356.92 = 641,206.82 : x
  2. Step 2: Convert to fraction form
    1,399,580.51/2,099,356.92 = 641,206.82/x
  3. Step 3: Cross multiply
    1,399,580.51x = 2,099,356.92 × 641,206.82
  4. Step 4: Simplify right side
    1,399,580.51x = 1,346,121,974,718.19
  5. Step 5: Solve for x
    x = 1,346,121,974,718.19/1,399,580.51
  6. Step 6: Final answer
    x = 961,803.89

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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.