Home / 685,806.91-1,029,374.66-331,070.04

Finding the Fourth Proportional to 685,806.91, 1,029,374.66 and 331,070.04

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Solution

The fourth proportional to 685,806.91, 1,029,374.66 and 331,070.04 is: 496,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,806.91 : 1,029,374.66 = 331,070.04 : x
  2. Step 2: Convert to fraction form
    685,806.91/1,029,374.66 = 331,070.04/x
  3. Step 3: Cross multiply
    685,806.91x = 1,029,374.66 × 331,070.04
  4. Step 4: Simplify right side
    685,806.91x = 340,795,110,688.86
  5. Step 5: Solve for x
    x = 340,795,110,688.86/685,806.91
  6. Step 6: Final answer
    x = 496,925.75

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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.