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Finding the Fourth Proportional to 477,768.87, 716,411.52 and 211,610.97

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Solution

The fourth proportional to 477,768.87, 716,411.52 and 211,610.97 is: 317,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,768.87 : 716,411.52 = 211,610.97 : x
  2. Step 2: Convert to fraction form
    477,768.87/716,411.52 = 211,610.97/x
  3. Step 3: Cross multiply
    477,768.87x = 716,411.52 × 211,610.97
  4. Step 4: Simplify right side
    477,768.87x = 151,600,536,666.37
  5. Step 5: Solve for x
    x = 151,600,536,666.37/477,768.87
  6. Step 6: Final answer
    x = 317,309.36

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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.