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Finding the Fourth Proportional to 570,077.48, 855,138.10 and 254,537.12

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Solution

The fourth proportional to 570,077.48, 855,138.10 and 254,537.12 is: 381,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,077.48 : 855,138.10 = 254,537.12 : x
  2. Step 2: Convert to fraction form
    570,077.48/855,138.10 = 254,537.12/x
  3. Step 3: Cross multiply
    570,077.48x = 855,138.10 × 254,537.12
  4. Step 4: Simplify right side
    570,077.48x = 217,664,391,428.53
  5. Step 5: Solve for x
    x = 217,664,391,428.53/570,077.48
  6. Step 6: Final answer
    x = 381,815.45

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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.