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Finding the Fourth Proportional to 438,467.60, 657,910.44 and 303,739.35

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Solution

The fourth proportional to 438,467.60, 657,910.44 and 303,739.35 is: 455,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,467.60 : 657,910.44 = 303,739.35 : x
  2. Step 2: Convert to fraction form
    438,467.60/657,910.44 = 303,739.35/x
  3. Step 3: Cross multiply
    438,467.60x = 657,910.44 × 303,739.35
  4. Step 4: Simplify right side
    438,467.60x = 199,833,289,403.81
  5. Step 5: Solve for x
    x = 199,833,289,403.81/438,467.60
  6. Step 6: Final answer
    x = 455,753.83

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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.