Home / 823,163.60-1,234,054.20-429,179.60

Finding the Fourth Proportional to 823,163.60, 1,234,054.20 and 429,179.60

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Solution

The fourth proportional to 823,163.60, 1,234,054.20 and 429,179.60 is: 643,409.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,163.60 : 1,234,054.20 = 429,179.60 : x
  2. Step 2: Convert to fraction form
    823,163.60/1,234,054.20 = 429,179.60/x
  3. Step 3: Cross multiply
    823,163.60x = 1,234,054.20 × 429,179.60
  4. Step 4: Simplify right side
    823,163.60x = 529,630,887,934.32
  5. Step 5: Solve for x
    x = 529,630,887,934.32/823,163.60
  6. Step 6: Final answer
    x = 643,409.02

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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.