Home / 1,145,962.47-1,581,440.79-629,716.49

Finding the Fourth Proportional to 1,145,962.47, 1,581,440.79 and 629,716.49

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Solution

The fourth proportional to 1,145,962.47, 1,581,440.79 and 629,716.49 is: 869,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,962.47 : 1,581,440.79 = 629,716.49 : x
  2. Step 2: Convert to fraction form
    1,145,962.47/1,581,440.79 = 629,716.49/x
  3. Step 3: Cross multiply
    1,145,962.47x = 1,581,440.79 × 629,716.49
  4. Step 4: Simplify right side
    1,145,962.47x = 995,859,352,701.87
  5. Step 5: Solve for x
    x = 995,859,352,701.87/1,145,962.47
  6. Step 6: Final answer
    x = 869,015.68

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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.