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Finding the Fourth Proportional to 647,268.36, 893,260.58 and 360,790.52

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Solution

The fourth proportional to 647,268.36, 893,260.58 and 360,790.52 is: 497,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,268.36 : 893,260.58 = 360,790.52 : x
  2. Step 2: Convert to fraction form
    647,268.36/893,260.58 = 360,790.52/x
  3. Step 3: Cross multiply
    647,268.36x = 893,260.58 × 360,790.52
  4. Step 4: Simplify right side
    647,268.36x = 322,279,949,153.70
  5. Step 5: Solve for x
    x = 322,279,949,153.70/647,268.36
  6. Step 6: Final answer
    x = 497,907.78

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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.