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Finding the Fourth Proportional to 605,719.70, 908,579.55 and 416,762.90

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Solution

The fourth proportional to 605,719.70, 908,579.55 and 416,762.90 is: 625,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,719.70 : 908,579.55 = 416,762.90 : x
  2. Step 2: Convert to fraction form
    605,719.70/908,579.55 = 416,762.90/x
  3. Step 3: Cross multiply
    605,719.70x = 908,579.55 × 416,762.90
  4. Step 4: Simplify right side
    605,719.70x = 378,662,248,138.70
  5. Step 5: Solve for x
    x = 378,662,248,138.70/605,719.70
  6. Step 6: Final answer
    x = 625,144.35

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Similar ratio
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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.