Home / 426,534.36-639,799.70-173,758.48

Finding the Fourth Proportional to 426,534.36, 639,799.70 and 173,758.48

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Solution

The fourth proportional to 426,534.36, 639,799.70 and 173,758.48 is: 260,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,534.36 : 639,799.70 = 173,758.48 : x
  2. Step 2: Convert to fraction form
    426,534.36/639,799.70 = 173,758.48/x
  3. Step 3: Cross multiply
    426,534.36x = 639,799.70 × 173,758.48
  4. Step 4: Simplify right side
    426,534.36x = 111,170,623,376.46
  5. Step 5: Solve for x
    x = 111,170,623,376.46/426,534.36
  6. Step 6: Final answer
    x = 260,636.97

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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.