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Finding the Fourth Proportional to 427,509.18, 589,910.80 and 246,279.78

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Solution

The fourth proportional to 427,509.18, 589,910.80 and 246,279.78 is: 339,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,509.18 : 589,910.80 = 246,279.78 : x
  2. Step 2: Convert to fraction form
    427,509.18/589,910.80 = 246,279.78/x
  3. Step 3: Cross multiply
    427,509.18x = 589,910.80 × 246,279.78
  4. Step 4: Simplify right side
    427,509.18x = 145,283,099,401.92
  5. Step 5: Solve for x
    x = 145,283,099,401.92/427,509.18
  6. Step 6: Final answer
    x = 339,836.21

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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.