Home / 685,321.70-1,027,982.55-615,337.70

Finding the Fourth Proportional to 685,321.70, 1,027,982.55 and 615,337.70

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Solution

The fourth proportional to 685,321.70, 1,027,982.55 and 615,337.70 is: 923,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,321.70 : 1,027,982.55 = 615,337.70 : x
  2. Step 2: Convert to fraction form
    685,321.70/1,027,982.55 = 615,337.70/x
  3. Step 3: Cross multiply
    685,321.70x = 1,027,982.55 × 615,337.70
  4. Step 4: Simplify right side
    685,321.70x = 632,556,417,957.14
  5. Step 5: Solve for x
    x = 632,556,417,957.14/685,321.70
  6. Step 6: Final answer
    x = 923,006.55

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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.