Home / 812,700.67-1,219,673.09-363,247.87

Finding the Fourth Proportional to 812,700.67, 1,219,673.09 and 363,247.87

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Solution

The fourth proportional to 812,700.67, 1,219,673.09 and 363,247.87 is: 545,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,700.67 : 1,219,673.09 = 363,247.87 : x
  2. Step 2: Convert to fraction form
    812,700.67/1,219,673.09 = 363,247.87/x
  3. Step 3: Cross multiply
    812,700.67x = 1,219,673.09 × 363,247.87
  4. Step 4: Simplify right side
    812,700.67x = 443,043,652,038.82
  5. Step 5: Solve for x
    x = 443,043,652,038.82/812,700.67
  6. Step 6: Final answer
    x = 545,149.85

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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.