Home / 890,705.70-1,336,039.85-216,790.76

Finding the Fourth Proportional to 890,705.70, 1,336,039.85 and 216,790.76

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Solution

The fourth proportional to 890,705.70, 1,336,039.85 and 216,790.76 is: 325,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,705.70 : 1,336,039.85 = 216,790.76 : x
  2. Step 2: Convert to fraction form
    890,705.70/1,336,039.85 = 216,790.76/x
  3. Step 3: Cross multiply
    890,705.70x = 1,336,039.85 × 216,790.76
  4. Step 4: Simplify right side
    890,705.70x = 289,641,098,353.86
  5. Step 5: Solve for x
    x = 289,641,098,353.86/890,705.70
  6. Step 6: Final answer
    x = 325,181.59

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1.5x scale

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.