Home / 426,575.82-639,897.75-146,095.50

Finding the Fourth Proportional to 426,575.82, 639,897.75 and 146,095.50

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Solution

The fourth proportional to 426,575.82, 639,897.75 and 146,095.50 is: 219,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,575.82 : 639,897.75 = 146,095.50 : x
  2. Step 2: Convert to fraction form
    426,575.82/639,897.75 = 146,095.50/x
  3. Step 3: Cross multiply
    426,575.82x = 639,897.75 × 146,095.50
  4. Step 4: Simplify right side
    426,575.82x = 93,486,181,735.13
  5. Step 5: Solve for x
    x = 93,486,181,735.13/426,575.82
  6. Step 6: Final answer
    x = 219,154.90

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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.