Home / 642,922.68-963,450.90-361,839.72

Finding the Fourth Proportional to 642,922.68, 963,450.90 and 361,839.72

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Solution

The fourth proportional to 642,922.68, 963,450.90 and 361,839.72 is: 542,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,922.68 : 963,450.90 = 361,839.72 : x
  2. Step 2: Convert to fraction form
    642,922.68/963,450.90 = 361,839.72/x
  3. Step 3: Cross multiply
    642,922.68x = 963,450.90 × 361,839.72
  4. Step 4: Simplify right side
    642,922.68x = 348,614,803,889.75
  5. Step 5: Solve for x
    x = 348,614,803,889.75/642,922.68
  6. Step 6: Final answer
    x = 542,234.42

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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.