Home / 1,138,981.50-1,571,827.28-629,716.68

Finding the Fourth Proportional to 1,138,981.50, 1,571,827.28 and 629,716.68

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Solution

The fourth proportional to 1,138,981.50, 1,571,827.28 and 629,716.68 is: 869,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,981.50 : 1,571,827.28 = 629,716.68 : x
  2. Step 2: Convert to fraction form
    1,138,981.50/1,571,827.28 = 629,716.68/x
  3. Step 3: Cross multiply
    1,138,981.50x = 1,571,827.28 × 629,716.68
  4. Step 4: Simplify right side
    1,138,981.50x = 989,805,853,146.45
  5. Step 5: Solve for x
    x = 989,805,853,146.45/1,138,981.50
  6. Step 6: Final answer
    x = 869,027.16

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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.