Home / 726,715.42-1,090,317.63-321,851.50

Finding the Fourth Proportional to 726,715.42, 1,090,317.63 and 321,851.50

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Solution

The fourth proportional to 726,715.42, 1,090,317.63 and 321,851.50 is: 482,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,715.42 : 1,090,317.63 = 321,851.50 : x
  2. Step 2: Convert to fraction form
    726,715.42/1,090,317.63 = 321,851.50/x
  3. Step 3: Cross multiply
    726,715.42x = 1,090,317.63 × 321,851.50
  4. Step 4: Simplify right side
    726,715.42x = 350,920,364,691.95
  5. Step 5: Solve for x
    x = 350,920,364,691.95/726,715.42
  6. Step 6: Final answer
    x = 482,885.54

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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.