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Finding the Fourth Proportional to 478,841.83, 660,806.83 and 263,989.58

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Solution

The fourth proportional to 478,841.83, 660,806.83 and 263,989.58 is: 364,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,841.83 : 660,806.83 = 263,989.58 : x
  2. Step 2: Convert to fraction form
    478,841.83/660,806.83 = 263,989.58/x
  3. Step 3: Cross multiply
    478,841.83x = 660,806.83 × 263,989.58
  4. Step 4: Simplify right side
    478,841.83x = 174,446,118,998.29
  5. Step 5: Solve for x
    x = 174,446,118,998.29/478,841.83
  6. Step 6: Final answer
    x = 364,308.44

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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.