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Finding the Fourth Proportional to 606,980.60, 910,835.40 and 251,957.60

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Solution

The fourth proportional to 606,980.60, 910,835.40 and 251,957.60 is: 378,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,980.60 : 910,835.40 = 251,957.60 : x
  2. Step 2: Convert to fraction form
    606,980.60/910,835.40 = 251,957.60/x
  3. Step 3: Cross multiply
    606,980.60x = 910,835.40 × 251,957.60
  4. Step 4: Simplify right side
    606,980.60x = 229,491,901,379.04
  5. Step 5: Solve for x
    x = 229,491,901,379.04/606,980.60
  6. Step 6: Final answer
    x = 378,087.70

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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.