Home / 642,229.92-962,994.16-509,959.84

Finding the Fourth Proportional to 642,229.92, 962,994.16 and 509,959.84

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Solution

The fourth proportional to 642,229.92, 962,994.16 and 509,959.84 is: 764,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,229.92 : 962,994.16 = 509,959.84 : x
  2. Step 2: Convert to fraction form
    642,229.92/962,994.16 = 509,959.84/x
  3. Step 3: Cross multiply
    642,229.92x = 962,994.16 × 509,959.84
  4. Step 4: Simplify right side
    642,229.92x = 491,088,347,754.53
  5. Step 5: Solve for x
    x = 491,088,347,754.53/642,229.92
  6. Step 6: Final answer
    x = 764,661.27

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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.