Home / 680,617.80-1,013,942.16-649,912.32

Finding the Fourth Proportional to 680,617.80, 1,013,942.16 and 649,912.32

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Solution

The fourth proportional to 680,617.80, 1,013,942.16 and 649,912.32 is: 968,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,617.80 : 1,013,942.16 = 649,912.32 : x
  2. Step 2: Convert to fraction form
    680,617.80/1,013,942.16 = 649,912.32/x
  3. Step 3: Cross multiply
    680,617.80x = 1,013,942.16 × 649,912.32
  4. Step 4: Simplify right side
    680,617.80x = 658,973,501,551.41
  5. Step 5: Solve for x
    x = 658,973,501,551.41/680,617.80
  6. Step 6: Final answer
    x = 968,199.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.