Home / 1,143,636.55-1,578,230.46-627,391.49

Finding the Fourth Proportional to 1,143,636.55, 1,578,230.46 and 627,391.49

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Solution

The fourth proportional to 1,143,636.55, 1,578,230.46 and 627,391.49 is: 865,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,636.55 : 1,578,230.46 = 627,391.49 : x
  2. Step 2: Convert to fraction form
    1,143,636.55/1,578,230.46 = 627,391.49/x
  3. Step 3: Cross multiply
    1,143,636.55x = 1,578,230.46 × 627,391.49
  4. Step 4: Simplify right side
    1,143,636.55x = 990,168,351,971.63
  5. Step 5: Solve for x
    x = 990,168,351,971.63/1,143,636.55
  6. Step 6: Final answer
    x = 865,806.85

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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.