Home / 1,188,435.20-1,640,077.71-672,179.00

Finding the Fourth Proportional to 1,188,435.20, 1,640,077.71 and 672,179.00

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Solution

The fourth proportional to 1,188,435.20, 1,640,077.71 and 672,179.00 is: 927,628.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,435.20 : 1,640,077.71 = 672,179.00 : x
  2. Step 2: Convert to fraction form
    1,188,435.20/1,640,077.71 = 672,179.00/x
  3. Step 3: Cross multiply
    1,188,435.20x = 1,640,077.71 × 672,179.00
  4. Step 4: Simplify right side
    1,188,435.20x = 1,102,425,783,468.81
  5. Step 5: Solve for x
    x = 1,102,425,783,468.81/1,188,435.20
  6. Step 6: Final answer
    x = 927,628.01

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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.