Home / 1,143,909.44-1,578,542.07-627,650.47

Finding the Fourth Proportional to 1,143,909.44, 1,578,542.07 and 627,650.47

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Solution

The fourth proportional to 1,143,909.44, 1,578,542.07 and 627,650.47 is: 866,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,909.44 : 1,578,542.07 = 627,650.47 : x
  2. Step 2: Convert to fraction form
    1,143,909.44/1,578,542.07 = 627,650.47/x
  3. Step 3: Cross multiply
    1,143,909.44x = 1,578,542.07 × 627,650.47
  4. Step 4: Simplify right side
    1,143,909.44x = 990,772,676,477.14
  5. Step 5: Solve for x
    x = 990,772,676,477.14/1,143,909.44
  6. Step 6: Final answer
    x = 866,128.60

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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.