Home / 954,358.20-1,431,462.78-421,896.60

Finding the Fourth Proportional to 954,358.20, 1,431,462.78 and 421,896.60

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Solution

The fourth proportional to 954,358.20, 1,431,462.78 and 421,896.60 is: 632,811.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,358.20 : 1,431,462.78 = 421,896.60 : x
  2. Step 2: Convert to fraction form
    954,358.20/1,431,462.78 = 421,896.60/x
  3. Step 3: Cross multiply
    954,358.20x = 1,431,462.78 × 421,896.60
  4. Step 4: Simplify right side
    954,358.20x = 603,929,279,908.55
  5. Step 5: Solve for x
    x = 603,929,279,908.55/954,358.20
  6. Step 6: Final answer
    x = 632,811.96

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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.