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Finding the Fourth Proportional to 571,782.82, 789,154.78 and 317,216.02

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Solution

The fourth proportional to 571,782.82, 789,154.78 and 317,216.02 is: 437,810.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,782.82 : 789,154.78 = 317,216.02 : x
  2. Step 2: Convert to fraction form
    571,782.82/789,154.78 = 317,216.02/x
  3. Step 3: Cross multiply
    571,782.82x = 789,154.78 × 317,216.02
  4. Step 4: Simplify right side
    571,782.82x = 250,332,538,475.58
  5. Step 5: Solve for x
    x = 250,332,538,475.58/571,782.82
  6. Step 6: Final answer
    x = 437,810.53

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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.