Home / 1,215,889.52-1,678,014.36-672,013.62

Finding the Fourth Proportional to 1,215,889.52, 1,678,014.36 and 672,013.62

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Solution

The fourth proportional to 1,215,889.52, 1,678,014.36 and 672,013.62 is: 927,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,889.52 : 1,678,014.36 = 672,013.62 : x
  2. Step 2: Convert to fraction form
    1,215,889.52/1,678,014.36 = 672,013.62/x
  3. Step 3: Cross multiply
    1,215,889.52x = 1,678,014.36 × 672,013.62
  4. Step 4: Simplify right side
    1,215,889.52x = 1,127,648,504,475.58
  5. Step 5: Solve for x
    x = 1,127,648,504,475.58/1,215,889.52
  6. Step 6: Final answer
    x = 927,426.79

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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.