Home / 680,942.80-1,021,414.20-349,166.80

Finding the Fourth Proportional to 680,942.80, 1,021,414.20 and 349,166.80

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Solution

The fourth proportional to 680,942.80, 1,021,414.20 and 349,166.80 is: 523,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,942.80 : 1,021,414.20 = 349,166.80 : x
  2. Step 2: Convert to fraction form
    680,942.80/1,021,414.20 = 349,166.80/x
  3. Step 3: Cross multiply
    680,942.80x = 1,021,414.20 × 349,166.80
  4. Step 4: Simplify right side
    680,942.80x = 356,643,927,688.56
  5. Step 5: Solve for x
    x = 356,643,927,688.56/680,942.80
  6. Step 6: Final answer
    x = 523,750.20

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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.