Home / 678,837.51-1,018,387.49-229,631.36

Finding the Fourth Proportional to 678,837.51, 1,018,387.49 and 229,631.36

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Solution

The fourth proportional to 678,837.51, 1,018,387.49 and 229,631.36 is: 344,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,837.51 : 1,018,387.49 = 229,631.36 : x
  2. Step 2: Convert to fraction form
    678,837.51/1,018,387.49 = 229,631.36/x
  3. Step 3: Cross multiply
    678,837.51x = 1,018,387.49 × 229,631.36
  4. Step 4: Simplify right side
    678,837.51x = 233,853,698,095.59
  5. Step 5: Solve for x
    x = 233,853,698,095.59/678,837.51
  6. Step 6: Final answer
    x = 344,491.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.