Home / 1,025,997.30-1,415,681.37-643,851.86

Finding the Fourth Proportional to 1,025,997.30, 1,415,681.37 and 643,851.86

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Solution

The fourth proportional to 1,025,997.30, 1,415,681.37 and 643,851.86 is: 888,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,997.30 : 1,415,681.37 = 643,851.86 : x
  2. Step 2: Convert to fraction form
    1,025,997.30/1,415,681.37 = 643,851.86/x
  3. Step 3: Cross multiply
    1,025,997.30x = 1,415,681.37 × 643,851.86
  4. Step 4: Simplify right side
    1,025,997.30x = 911,489,076,163.44
  5. Step 5: Solve for x
    x = 911,489,076,163.44/1,025,997.30
  6. Step 6: Final answer
    x = 888,393.25

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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.