Home / 1,138,755.30-1,571,482.71-629,457.54

Finding the Fourth Proportional to 1,138,755.30, 1,571,482.71 and 629,457.54

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Solution

The fourth proportional to 1,138,755.30, 1,571,482.71 and 629,457.54 is: 868,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,755.30 : 1,571,482.71 = 629,457.54 : x
  2. Step 2: Convert to fraction form
    1,138,755.30/1,571,482.71 = 629,457.54/x
  3. Step 3: Cross multiply
    1,138,755.30x = 1,571,482.71 × 629,457.54
  4. Step 4: Simplify right side
    1,138,755.30x = 989,181,640,789.13
  5. Step 5: Solve for x
    x = 989,181,640,789.13/1,138,755.30
  6. Step 6: Final answer
    x = 868,651.62

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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.