Home / 561,299.78-842,081.16-383,890.34

Finding the Fourth Proportional to 561,299.78, 842,081.16 and 383,890.34

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Solution

The fourth proportional to 561,299.78, 842,081.16 and 383,890.34 is: 575,925.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,299.78 : 842,081.16 = 383,890.34 : x
  2. Step 2: Convert to fraction form
    561,299.78/842,081.16 = 383,890.34/x
  3. Step 3: Cross multiply
    561,299.78x = 842,081.16 × 383,890.34
  4. Step 4: Simplify right side
    561,299.78x = 323,266,822,819.99
  5. Step 5: Solve for x
    x = 323,266,822,819.99/561,299.78
  6. Step 6: Final answer
    x = 575,925.44

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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.