Home / 880,667.76-1,215,321.50-478,259.76

Finding the Fourth Proportional to 880,667.76, 1,215,321.50 and 478,259.76

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Solution

The fourth proportional to 880,667.76, 1,215,321.50 and 478,259.76 is: 659,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,667.76 : 1,215,321.50 = 478,259.76 : x
  2. Step 2: Convert to fraction form
    880,667.76/1,215,321.50 = 478,259.76/x
  3. Step 3: Cross multiply
    880,667.76x = 1,215,321.50 × 478,259.76
  4. Step 4: Simplify right side
    880,667.76x = 581,239,368,912.84
  5. Step 5: Solve for x
    x = 581,239,368,912.84/880,667.76
  6. Step 6: Final answer
    x = 659,998.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.