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Finding the Fourth Proportional to 450,605.86, 676,783.60 and 331,808.02

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Solution

The fourth proportional to 450,605.86, 676,783.60 and 331,808.02 is: 498,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,605.86 : 676,783.60 = 331,808.02 : x
  2. Step 2: Convert to fraction form
    450,605.86/676,783.60 = 331,808.02/x
  3. Step 3: Cross multiply
    450,605.86x = 676,783.60 × 331,808.02
  4. Step 4: Simplify right side
    450,605.86x = 224,562,226,284.47
  5. Step 5: Solve for x
    x = 224,562,226,284.47/450,605.86
  6. Step 6: Final answer
    x = 498,356.20

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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.