Home / 1,188,597.40-1,640,345.88-672,351.82

Finding the Fourth Proportional to 1,188,597.40, 1,640,345.88 and 672,351.82

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Solution

The fourth proportional to 1,188,597.40, 1,640,345.88 and 672,351.82 is: 927,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,597.40 : 1,640,345.88 = 672,351.82 : x
  2. Step 2: Convert to fraction form
    1,188,597.40/1,640,345.88 = 672,351.82/x
  3. Step 3: Cross multiply
    1,188,597.40x = 1,640,345.88 × 672,351.82
  4. Step 4: Simplify right side
    1,188,597.40x = 1,102,889,537,847.50
  5. Step 5: Solve for x
    x = 1,102,889,537,847.50/1,188,597.40
  6. Step 6: Final answer
    x = 927,891.60

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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.