Home / 1,293,395.87-1,784,941.37-720,436.29

Finding the Fourth Proportional to 1,293,395.87, 1,784,941.37 and 720,436.29

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Solution

The fourth proportional to 1,293,395.87, 1,784,941.37 and 720,436.29 is: 994,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,395.87 : 1,784,941.37 = 720,436.29 : x
  2. Step 2: Convert to fraction form
    1,293,395.87/1,784,941.37 = 720,436.29/x
  3. Step 3: Cross multiply
    1,293,395.87x = 1,784,941.37 × 720,436.29
  4. Step 4: Simplify right side
    1,293,395.87x = 1,285,936,534,868.14
  5. Step 5: Solve for x
    x = 1,285,936,534,868.14/1,293,395.87
  6. Step 6: Final answer
    x = 994,232.76

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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.