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Finding the Fourth Proportional to 571,956.89, 789,298.10 and 317,308.08

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Solution

The fourth proportional to 571,956.89, 789,298.10 and 317,308.08 is: 437,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,956.89 : 789,298.10 = 317,308.08 : x
  2. Step 2: Convert to fraction form
    571,956.89/789,298.10 = 317,308.08/x
  3. Step 3: Cross multiply
    571,956.89x = 789,298.10 × 317,308.08
  4. Step 4: Simplify right side
    571,956.89x = 250,450,664,658.65
  5. Step 5: Solve for x
    x = 250,450,664,658.65/571,956.89
  6. Step 6: Final answer
    x = 437,883.81

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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.