Home / 782,912.70-1,174,369.05-408,887.10

Finding the Fourth Proportional to 782,912.70, 1,174,369.05 and 408,887.10

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Solution

The fourth proportional to 782,912.70, 1,174,369.05 and 408,887.10 is: 613,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,912.70 : 1,174,369.05 = 408,887.10 : x
  2. Step 2: Convert to fraction form
    782,912.70/1,174,369.05 = 408,887.10/x
  3. Step 3: Cross multiply
    782,912.70x = 1,174,369.05 × 408,887.10
  4. Step 4: Simplify right side
    782,912.70x = 480,184,355,184.26
  5. Step 5: Solve for x
    x = 480,184,355,184.26/782,912.70
  6. Step 6: Final answer
    x = 613,330.65

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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.