Home / 642,323.52-963,500.94-215,865.63

Finding the Fourth Proportional to 642,323.52, 963,500.94 and 215,865.63

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Solution

The fourth proportional to 642,323.52, 963,500.94 and 215,865.63 is: 323,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,323.52 : 963,500.94 = 215,865.63 : x
  2. Step 2: Convert to fraction form
    642,323.52/963,500.94 = 215,865.63/x
  3. Step 3: Cross multiply
    642,323.52x = 963,500.94 × 215,865.63
  4. Step 4: Simplify right side
    642,323.52x = 207,986,737,418.69
  5. Step 5: Solve for x
    x = 207,986,737,418.69/642,323.52
  6. Step 6: Final answer
    x = 323,803.71

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1.5x scale

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.