Home / 678,538.34-936,383.74-372,634.44

Finding the Fourth Proportional to 678,538.34, 936,383.74 and 372,634.44

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Solution

The fourth proportional to 678,538.34, 936,383.74 and 372,634.44 is: 514,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,538.34 : 936,383.74 = 372,634.44 : x
  2. Step 2: Convert to fraction form
    678,538.34/936,383.74 = 372,634.44/x
  3. Step 3: Cross multiply
    678,538.34x = 936,383.74 × 372,634.44
  4. Step 4: Simplify right side
    678,538.34x = 348,928,830,580.01
  5. Step 5: Solve for x
    x = 348,928,830,580.01/678,538.34
  6. Step 6: Final answer
    x = 514,235.98

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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.