Home / 685,490.76-1,026,464.94-472,914.36

Finding the Fourth Proportional to 685,490.76, 1,026,464.94 and 472,914.36

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Solution

The fourth proportional to 685,490.76, 1,026,464.94 and 472,914.36 is: 708,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,490.76 : 1,026,464.94 = 472,914.36 : x
  2. Step 2: Convert to fraction form
    685,490.76/1,026,464.94 = 472,914.36/x
  3. Step 3: Cross multiply
    685,490.76x = 1,026,464.94 × 472,914.36
  4. Step 4: Simplify right side
    685,490.76x = 485,430,010,162.54
  5. Step 5: Solve for x
    x = 485,430,010,162.54/685,490.76
  6. Step 6: Final answer
    x = 708,149.60

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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.