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Finding the Fourth Proportional to 606,400.20, 910,037.70 and 339,877.80

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Solution

The fourth proportional to 606,400.20, 910,037.70 and 339,877.80 is: 510,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,400.20 : 910,037.70 = 339,877.80 : x
  2. Step 2: Convert to fraction form
    606,400.20/910,037.70 = 339,877.80/x
  3. Step 3: Cross multiply
    606,400.20x = 910,037.70 × 339,877.80
  4. Step 4: Simplify right side
    606,400.20x = 309,301,611,393.06
  5. Step 5: Solve for x
    x = 309,301,611,393.06/606,400.20
  6. Step 6: Final answer
    x = 510,061.86

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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.