Home / 1,215,883.54-1,678,006.17-672,007.63

Finding the Fourth Proportional to 1,215,883.54, 1,678,006.17 and 672,007.63

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Solution

The fourth proportional to 1,215,883.54, 1,678,006.17 and 672,007.63 is: 927,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,883.54 : 1,678,006.17 = 672,007.63 : x
  2. Step 2: Convert to fraction form
    1,215,883.54/1,678,006.17 = 672,007.63/x
  3. Step 3: Cross multiply
    1,215,883.54x = 1,678,006.17 × 672,007.63
  4. Step 4: Simplify right side
    1,215,883.54x = 1,127,632,949,427.08
  5. Step 5: Solve for x
    x = 1,127,632,949,427.08/1,215,883.54
  6. Step 6: Final answer
    x = 927,418.55

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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.