Home / 394,799.30-592,066.34-128,497.19

Finding the Fourth Proportional to 394,799.30, 592,066.34 and 128,497.19

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Solution

The fourth proportional to 394,799.30, 592,066.34 and 128,497.19 is: 192,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,799.30 : 592,066.34 = 128,497.19 : x
  2. Step 2: Convert to fraction form
    394,799.30/592,066.34 = 128,497.19/x
  3. Step 3: Cross multiply
    394,799.30x = 592,066.34 × 128,497.19
  4. Step 4: Simplify right side
    394,799.30x = 76,078,860,983.58
  5. Step 5: Solve for x
    x = 76,078,860,983.58/394,799.30
  6. Step 6: Final answer
    x = 192,702.62

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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.