Home / 809,324.61-1,214,686.89-311,038.53

Finding the Fourth Proportional to 809,324.61, 1,214,686.89 and 311,038.53

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Solution

The fourth proportional to 809,324.61, 1,214,686.89 and 311,038.53 is: 466,826.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,324.61 : 1,214,686.89 = 311,038.53 : x
  2. Step 2: Convert to fraction form
    809,324.61/1,214,686.89 = 311,038.53/x
  3. Step 3: Cross multiply
    809,324.61x = 1,214,686.89 × 311,038.53
  4. Step 4: Simplify right side
    809,324.61x = 377,814,424,675.87
  5. Step 5: Solve for x
    x = 377,814,424,675.87/809,324.61
  6. Step 6: Final answer
    x = 466,826.81

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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.