Home / 1,372,120.40-2,056,852.20-613,532.72

Finding the Fourth Proportional to 1,372,120.40, 2,056,852.20 and 613,532.72

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Solution

The fourth proportional to 1,372,120.40, 2,056,852.20 and 613,532.72 is: 919,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,120.40 : 2,056,852.20 = 613,532.72 : x
  2. Step 2: Convert to fraction form
    1,372,120.40/2,056,852.20 = 613,532.72/x
  3. Step 3: Cross multiply
    1,372,120.40x = 2,056,852.20 × 613,532.72
  4. Step 4: Simplify right side
    1,372,120.40x = 1,261,946,124,903.98
  5. Step 5: Solve for x
    x = 1,261,946,124,903.98/1,372,120.40
  6. Step 6: Final answer
    x = 919,705.10

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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.