Home / 780,908.32-1,171,639.91-348,586.60

Finding the Fourth Proportional to 780,908.32, 1,171,639.91 and 348,586.60

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Solution

The fourth proportional to 780,908.32, 1,171,639.91 and 348,586.60 is: 523,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,908.32 : 1,171,639.91 = 348,586.60 : x
  2. Step 2: Convert to fraction form
    780,908.32/1,171,639.91 = 348,586.60/x
  3. Step 3: Cross multiply
    780,908.32x = 1,171,639.91 × 348,586.60
  4. Step 4: Simplify right side
    780,908.32x = 408,417,972,651.21
  5. Step 5: Solve for x
    x = 408,417,972,651.21/780,908.32
  6. Step 6: Final answer
    x = 523,003.74

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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.