Home / 412,789.18-619,241.16-146,486.38

Finding the Fourth Proportional to 412,789.18, 619,241.16 and 146,486.38

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Solution

The fourth proportional to 412,789.18, 619,241.16 and 146,486.38 is: 219,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,789.18 : 619,241.16 = 146,486.38 : x
  2. Step 2: Convert to fraction form
    412,789.18/619,241.16 = 146,486.38/x
  3. Step 3: Cross multiply
    412,789.18x = 619,241.16 × 146,486.38
  4. Step 4: Simplify right side
    412,789.18x = 90,710,395,875.40
  5. Step 5: Solve for x
    x = 90,710,395,875.40/412,789.18
  6. Step 6: Final answer
    x = 219,749.94

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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.