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Finding the Fourth Proportional to 420,010.60, 629,141.10 and 350,026.60

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Solution

The fourth proportional to 420,010.60, 629,141.10 and 350,026.60 is: 524,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,010.60 : 629,141.10 = 350,026.60 : x
  2. Step 2: Convert to fraction form
    420,010.60/629,141.10 = 350,026.60/x
  3. Step 3: Cross multiply
    420,010.60x = 629,141.10 × 350,026.60
  4. Step 4: Simplify right side
    420,010.60x = 220,216,120,153.26
  5. Step 5: Solve for x
    x = 220,216,120,153.26/420,010.60
  6. Step 6: Final answer
    x = 524,310.86

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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.