Home / 642,110.70-963,166.05-327,182.70

Finding the Fourth Proportional to 642,110.70, 963,166.05 and 327,182.70

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Solution

The fourth proportional to 642,110.70, 963,166.05 and 327,182.70 is: 490,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,110.70 : 963,166.05 = 327,182.70 : x
  2. Step 2: Convert to fraction form
    642,110.70/963,166.05 = 327,182.70/x
  3. Step 3: Cross multiply
    642,110.70x = 963,166.05 × 327,182.70
  4. Step 4: Simplify right side
    642,110.70x = 315,131,268,787.34
  5. Step 5: Solve for x
    x = 315,131,268,787.34/642,110.70
  6. Step 6: Final answer
    x = 490,774.05

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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.