Home / 913,318.45-1,260,367.00-505,395.44

Finding the Fourth Proportional to 913,318.45, 1,260,367.00 and 505,395.44

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Solution

The fourth proportional to 913,318.45, 1,260,367.00 and 505,395.44 is: 697,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,318.45 : 1,260,367.00 = 505,395.44 : x
  2. Step 2: Convert to fraction form
    913,318.45/1,260,367.00 = 505,395.44/x
  3. Step 3: Cross multiply
    913,318.45x = 1,260,367.00 × 505,395.44
  4. Step 4: Simplify right side
    913,318.45x = 636,983,731,687.53
  5. Step 5: Solve for x
    x = 636,983,731,687.53/913,318.45
  6. Step 6: Final answer
    x = 697,438.81

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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.