Home / 1,127,219.94-1,555,671.15-643,857.30

Finding the Fourth Proportional to 1,127,219.94, 1,555,671.15 and 643,857.30

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Solution

The fourth proportional to 1,127,219.94, 1,555,671.15 and 643,857.30 is: 888,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,219.94 : 1,555,671.15 = 643,857.30 : x
  2. Step 2: Convert to fraction form
    1,127,219.94/1,555,671.15 = 643,857.30/x
  3. Step 3: Cross multiply
    1,127,219.94x = 1,555,671.15 × 643,857.30
  4. Step 4: Simplify right side
    1,127,219.94x = 1,001,630,226,326.90
  5. Step 5: Solve for x
    x = 1,001,630,226,326.90/1,127,219.94
  6. Step 6: Final answer
    x = 888,584.55

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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.