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Finding the Fourth Proportional to 570,428.82, 855,757.50 and 210,601.92

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Solution

The fourth proportional to 570,428.82, 855,757.50 and 210,601.92 is: 315,945.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,428.82 : 855,757.50 = 210,601.92 : x
  2. Step 2: Convert to fraction form
    570,428.82/855,757.50 = 210,601.92/x
  3. Step 3: Cross multiply
    570,428.82x = 855,757.50 × 210,601.92
  4. Step 4: Simplify right side
    570,428.82x = 180,224,172,554.40
  5. Step 5: Solve for x
    x = 180,224,172,554.40/570,428.82
  6. Step 6: Final answer
    x = 315,945.07

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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.