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Finding the Fourth Proportional to 505,342.76, 697,656.78 and 350,519.54

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Solution

The fourth proportional to 505,342.76, 697,656.78 and 350,519.54 is: 483,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,342.76 : 697,656.78 = 350,519.54 : x
  2. Step 2: Convert to fraction form
    505,342.76/697,656.78 = 350,519.54/x
  3. Step 3: Cross multiply
    505,342.76x = 697,656.78 × 350,519.54
  4. Step 4: Simplify right side
    505,342.76x = 244,542,330,115.20
  5. Step 5: Solve for x
    x = 244,542,330,115.20/505,342.76
  6. Step 6: Final answer
    x = 483,913.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.