Home / 2,059,221.40-3,089,123.70-639,129.40

Finding the Fourth Proportional to 2,059,221.40, 3,089,123.70 and 639,129.40

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Solution

The fourth proportional to 2,059,221.40, 3,089,123.70 and 639,129.40 is: 958,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,221.40 : 3,089,123.70 = 639,129.40 : x
  2. Step 2: Convert to fraction form
    2,059,221.40/3,089,123.70 = 639,129.40/x
  3. Step 3: Cross multiply
    2,059,221.40x = 3,089,123.70 × 639,129.40
  4. Step 4: Simplify right side
    2,059,221.40x = 1,974,349,776,906.78
  5. Step 5: Solve for x
    x = 1,974,349,776,906.78/2,059,221.40
  6. Step 6: Final answer
    x = 958,784.61

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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.