Home / 500,077.56-690,099.94-285,221.22

Finding the Fourth Proportional to 500,077.56, 690,099.94 and 285,221.22

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Solution

The fourth proportional to 500,077.56, 690,099.94 and 285,221.22 is: 393,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,077.56 : 690,099.94 = 285,221.22 : x
  2. Step 2: Convert to fraction form
    500,077.56/690,099.94 = 285,221.22/x
  3. Step 3: Cross multiply
    500,077.56x = 690,099.94 × 285,221.22
  4. Step 4: Simplify right side
    500,077.56x = 196,831,146,808.73
  5. Step 5: Solve for x
    x = 196,831,146,808.73/500,077.56
  6. Step 6: Final answer
    x = 393,601.24

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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.