Home / 1,216,387.19-1,678,584.74-672,508.97

Finding the Fourth Proportional to 1,216,387.19, 1,678,584.74 and 672,508.97

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Solution

The fourth proportional to 1,216,387.19, 1,678,584.74 and 672,508.97 is: 928,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,387.19 : 1,678,584.74 = 672,508.97 : x
  2. Step 2: Convert to fraction form
    1,216,387.19/1,678,584.74 = 672,508.97/x
  3. Step 3: Cross multiply
    1,216,387.19x = 1,678,584.74 × 672,508.97
  4. Step 4: Simplify right side
    1,216,387.19x = 1,128,863,291,192.57
  5. Step 5: Solve for x
    x = 1,128,863,291,192.57/1,216,387.19
  6. Step 6: Final answer
    x = 928,046.02

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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.