Home / 658,621.22-908,898.20-356,815.22

Finding the Fourth Proportional to 658,621.22, 908,898.20 and 356,815.22

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Solution

The fourth proportional to 658,621.22, 908,898.20 and 356,815.22 is: 492,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,621.22 : 908,898.20 = 356,815.22 : x
  2. Step 2: Convert to fraction form
    658,621.22/908,898.20 = 356,815.22/x
  3. Step 3: Cross multiply
    658,621.22x = 908,898.20 × 356,815.22
  4. Step 4: Simplify right side
    658,621.22x = 324,308,711,190.60
  5. Step 5: Solve for x
    x = 324,308,711,190.60/658,621.22
  6. Step 6: Final answer
    x = 492,405.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.