Home / 1,216,393.80-1,678,555.62-672,497.88

Finding the Fourth Proportional to 1,216,393.80, 1,678,555.62 and 672,497.88

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Solution

The fourth proportional to 1,216,393.80, 1,678,555.62 and 672,497.88 is: 928,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,393.80 : 1,678,555.62 = 672,497.88 : x
  2. Step 2: Convert to fraction form
    1,216,393.80/1,678,555.62 = 672,497.88/x
  3. Step 3: Cross multiply
    1,216,393.80x = 1,678,555.62 × 672,497.88
  4. Step 4: Simplify right side
    1,216,393.80x = 1,128,825,095,912.09
  5. Step 5: Solve for x
    x = 1,128,825,095,912.09/1,216,393.80
  6. Step 6: Final answer
    x = 928,009.58

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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.