Home / 1,690,137.80-2,535,372.30-492,072.20

Finding the Fourth Proportional to 1,690,137.80, 2,535,372.30 and 492,072.20

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Solution

The fourth proportional to 1,690,137.80, 2,535,372.30 and 492,072.20 is: 738,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,137.80 : 2,535,372.30 = 492,072.20 : x
  2. Step 2: Convert to fraction form
    1,690,137.80/2,535,372.30 = 492,072.20/x
  3. Step 3: Cross multiply
    1,690,137.80x = 2,535,372.30 × 492,072.20
  4. Step 4: Simplify right side
    1,690,137.80x = 1,247,586,225,480.06
  5. Step 5: Solve for x
    x = 1,247,586,225,480.06/1,690,137.80
  6. Step 6: Final answer
    x = 738,156.51

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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.