Home / 548,038.20-821,279.70-404,765.40

Finding the Fourth Proportional to 548,038.20, 821,279.70 and 404,765.40

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Solution

The fourth proportional to 548,038.20, 821,279.70 and 404,765.40 is: 606,573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,038.20 : 821,279.70 = 404,765.40 : x
  2. Step 2: Convert to fraction form
    548,038.20/821,279.70 = 404,765.40/x
  3. Step 3: Cross multiply
    548,038.20x = 821,279.70 × 404,765.40
  4. Step 4: Simplify right side
    548,038.20x = 332,425,606,282.38
  5. Step 5: Solve for x
    x = 332,425,606,282.38/548,038.20
  6. Step 6: Final answer
    x = 606,573.79

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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.