Home / 425,631.08-636,564.18-378,576.56

Finding the Fourth Proportional to 425,631.08, 636,564.18 and 378,576.56

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Solution

The fourth proportional to 425,631.08, 636,564.18 and 378,576.56 is: 566,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,631.08 : 636,564.18 = 378,576.56 : x
  2. Step 2: Convert to fraction form
    425,631.08/636,564.18 = 378,576.56/x
  3. Step 3: Cross multiply
    425,631.08x = 636,564.18 × 378,576.56
  4. Step 4: Simplify right side
    425,631.08x = 240,988,277,483.62
  5. Step 5: Solve for x
    x = 240,988,277,483.62/425,631.08
  6. Step 6: Final answer
    x = 566,190.51

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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.