Home / 829,912.65-1,145,268.18-467,340.90

Finding the Fourth Proportional to 829,912.65, 1,145,268.18 and 467,340.90

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Solution

The fourth proportional to 829,912.65, 1,145,268.18 and 467,340.90 is: 644,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,912.65 : 1,145,268.18 = 467,340.90 : x
  2. Step 2: Convert to fraction form
    829,912.65/1,145,268.18 = 467,340.90/x
  3. Step 3: Cross multiply
    829,912.65x = 1,145,268.18 × 467,340.90
  4. Step 4: Simplify right side
    829,912.65x = 535,230,661,982.56
  5. Step 5: Solve for x
    x = 535,230,661,982.56/829,912.65
  6. Step 6: Final answer
    x = 644,924.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.