Home / 678,326.28-936,043.40-376,496.52

Finding the Fourth Proportional to 678,326.28, 936,043.40 and 376,496.52

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Solution

The fourth proportional to 678,326.28, 936,043.40 and 376,496.52 is: 519,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,326.28 : 936,043.40 = 376,496.52 : x
  2. Step 2: Convert to fraction form
    678,326.28/936,043.40 = 376,496.52/x
  3. Step 3: Cross multiply
    678,326.28x = 936,043.40 × 376,496.52
  4. Step 4: Simplify right side
    678,326.28x = 352,417,082,668.97
  5. Step 5: Solve for x
    x = 352,417,082,668.97/678,326.28
  6. Step 6: Final answer
    x = 519,539.18

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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.