Home / 698,769.73-964,336.41-392,942.35

Finding the Fourth Proportional to 698,769.73, 964,336.41 and 392,942.35

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Solution

The fourth proportional to 698,769.73, 964,336.41 and 392,942.35 is: 542,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,769.73 : 964,336.41 = 392,942.35 : x
  2. Step 2: Convert to fraction form
    698,769.73/964,336.41 = 392,942.35/x
  3. Step 3: Cross multiply
    698,769.73x = 964,336.41 × 392,942.35
  4. Step 4: Simplify right side
    698,769.73x = 378,928,615,135.96
  5. Step 5: Solve for x
    x = 378,928,615,135.96/698,769.73
  6. Step 6: Final answer
    x = 542,279.67

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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.