Home / 970,279.20-1,454,900.40-339,213.60

Finding the Fourth Proportional to 970,279.20, 1,454,900.40 and 339,213.60

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Solution

The fourth proportional to 970,279.20, 1,454,900.40 and 339,213.60 is: 508,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,279.20 : 1,454,900.40 = 339,213.60 : x
  2. Step 2: Convert to fraction form
    970,279.20/1,454,900.40 = 339,213.60/x
  3. Step 3: Cross multiply
    970,279.20x = 1,454,900.40 × 339,213.60
  4. Step 4: Simplify right side
    970,279.20x = 493,522,002,325.44
  5. Step 5: Solve for x
    x = 493,522,002,325.44/970,279.20
  6. Step 6: Final answer
    x = 508,639.17

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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.