Home / 758,367.54-1,046,540.79-418,828.50

Finding the Fourth Proportional to 758,367.54, 1,046,540.79 and 418,828.50

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Solution

The fourth proportional to 758,367.54, 1,046,540.79 and 418,828.50 is: 577,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,367.54 : 1,046,540.79 = 418,828.50 : x
  2. Step 2: Convert to fraction form
    758,367.54/1,046,540.79 = 418,828.50/x
  3. Step 3: Cross multiply
    758,367.54x = 1,046,540.79 × 418,828.50
  4. Step 4: Simplify right side
    758,367.54x = 438,321,109,264.52
  5. Step 5: Solve for x
    x = 438,321,109,264.52/758,367.54
  6. Step 6: Final answer
    x = 577,979.79

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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.