Home / 829,664.86-1,245,239.16-425,133.04

Finding the Fourth Proportional to 829,664.86, 1,245,239.16 and 425,133.04

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Solution

The fourth proportional to 829,664.86, 1,245,239.16 and 425,133.04 is: 638,079.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,664.86 : 1,245,239.16 = 425,133.04 : x
  2. Step 2: Convert to fraction form
    829,664.86/1,245,239.16 = 425,133.04/x
  3. Step 3: Cross multiply
    829,664.86x = 1,245,239.16 × 425,133.04
  4. Step 4: Simplify right side
    829,664.86x = 529,392,309,617.85
  5. Step 5: Solve for x
    x = 529,392,309,617.85/829,664.86
  6. Step 6: Final answer
    x = 638,079.71

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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.