Home / 829,901.60-1,245,466.80-331,623.20

Finding the Fourth Proportional to 829,901.60, 1,245,466.80 and 331,623.20

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Solution

The fourth proportional to 829,901.60, 1,245,466.80 and 331,623.20 is: 497,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,901.60 : 1,245,466.80 = 331,623.20 : x
  2. Step 2: Convert to fraction form
    829,901.60/1,245,466.80 = 331,623.20/x
  3. Step 3: Cross multiply
    829,901.60x = 1,245,466.80 × 331,623.20
  4. Step 4: Simplify right side
    829,901.60x = 413,025,685,709.76
  5. Step 5: Solve for x
    x = 413,025,685,709.76/829,901.60
  6. Step 6: Final answer
    x = 497,680.31

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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.