Home / 829,208.54-1,243,808.73-323,820.86

Finding the Fourth Proportional to 829,208.54, 1,243,808.73 and 323,820.86

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Solution

The fourth proportional to 829,208.54, 1,243,808.73 and 323,820.86 is: 485,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,208.54 : 1,243,808.73 = 323,820.86 : x
  2. Step 2: Convert to fraction form
    829,208.54/1,243,808.73 = 323,820.86/x
  3. Step 3: Cross multiply
    829,208.54x = 1,243,808.73 × 323,820.86
  4. Step 4: Simplify right side
    829,208.54x = 402,771,206,405.06
  5. Step 5: Solve for x
    x = 402,771,206,405.06/829,208.54
  6. Step 6: Final answer
    x = 485,729.69

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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.