Home / 1,143,943.39-1,578,641.23-627,700.67

Finding the Fourth Proportional to 1,143,943.39, 1,578,641.23 and 627,700.67

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Solution

The fourth proportional to 1,143,943.39, 1,578,641.23 and 627,700.67 is: 866,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,943.39 : 1,578,641.23 = 627,700.67 : x
  2. Step 2: Convert to fraction form
    1,143,943.39/1,578,641.23 = 627,700.67/x
  3. Step 3: Cross multiply
    1,143,943.39x = 1,578,641.23 × 627,700.67
  4. Step 4: Simplify right side
    1,143,943.39x = 990,914,157,760.62
  5. Step 5: Solve for x
    x = 990,914,157,760.62/1,143,943.39
  6. Step 6: Final answer
    x = 866,226.57

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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.