Home / 1,185,214.99-1,635,601.02-641,350.78

Finding the Fourth Proportional to 1,185,214.99, 1,635,601.02 and 641,350.78

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Solution

The fourth proportional to 1,185,214.99, 1,635,601.02 and 641,350.78 is: 885,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,214.99 : 1,635,601.02 = 641,350.78 : x
  2. Step 2: Convert to fraction form
    1,185,214.99/1,635,601.02 = 641,350.78/x
  3. Step 3: Cross multiply
    1,185,214.99x = 1,635,601.02 × 641,350.78
  4. Step 4: Simplify right side
    1,185,214.99x = 1,048,993,989,945.80
  5. Step 5: Solve for x
    x = 1,048,993,989,945.80/1,185,214.99
  6. Step 6: Final answer
    x = 885,066.42

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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.