Home / 864,465.79-1,296,866.76-331,947.67

Finding the Fourth Proportional to 864,465.79, 1,296,866.76 and 331,947.67

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Solution

The fourth proportional to 864,465.79, 1,296,866.76 and 331,947.67 is: 497,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,465.79 : 1,296,866.76 = 331,947.67 : x
  2. Step 2: Convert to fraction form
    864,465.79/1,296,866.76 = 331,947.67/x
  3. Step 3: Cross multiply
    864,465.79x = 1,296,866.76 × 331,947.67
  4. Step 4: Simplify right side
    864,465.79x = 430,491,899,282.45
  5. Step 5: Solve for x
    x = 430,491,899,282.45/864,465.79
  6. Step 6: Final answer
    x = 497,986.04

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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.