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Finding the Fourth Proportional to 420,653.48, 580,059.86 and 277,230.04

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Solution

The fourth proportional to 420,653.48, 580,059.86 and 277,230.04 is: 382,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,653.48 : 580,059.86 = 277,230.04 : x
  2. Step 2: Convert to fraction form
    420,653.48/580,059.86 = 277,230.04/x
  3. Step 3: Cross multiply
    420,653.48x = 580,059.86 × 277,230.04
  4. Step 4: Simplify right side
    420,653.48x = 160,810,018,190.19
  5. Step 5: Solve for x
    x = 160,810,018,190.19/420,653.48
  6. Step 6: Final answer
    x = 382,286.19

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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.