Home / 1,022,778.35-1,533,921.48-312,812.54

Finding the Fourth Proportional to 1,022,778.35, 1,533,921.48 and 312,812.54

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Solution

The fourth proportional to 1,022,778.35, 1,533,921.48 and 312,812.54 is: 469,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,778.35 : 1,533,921.48 = 312,812.54 : x
  2. Step 2: Convert to fraction form
    1,022,778.35/1,533,921.48 = 312,812.54/x
  3. Step 3: Cross multiply
    1,022,778.35x = 1,533,921.48 × 312,812.54
  4. Step 4: Simplify right side
    1,022,778.35x = 479,829,874,319.36
  5. Step 5: Solve for x
    x = 479,829,874,319.36/1,022,778.35
  6. Step 6: Final answer
    x = 469,143.56

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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.