Home / 685,480.56-1,026,432.36-551,629.68

Finding the Fourth Proportional to 685,480.56, 1,026,432.36 and 551,629.68

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Solution

The fourth proportional to 685,480.56, 1,026,432.36 and 551,629.68 is: 826,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,480.56 : 1,026,432.36 = 551,629.68 : x
  2. Step 2: Convert to fraction form
    685,480.56/1,026,432.36 = 551,629.68/x
  3. Step 3: Cross multiply
    685,480.56x = 1,026,432.36 × 551,629.68
  4. Step 4: Simplify right side
    685,480.56x = 566,210,554,288.45
  5. Step 5: Solve for x
    x = 566,210,554,288.45/685,480.56
  6. Step 6: Final answer
    x = 826,005.27

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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.