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Finding the Fourth Proportional to 483,333.36, 726,454.40 and 399,629.58

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Solution

The fourth proportional to 483,333.36, 726,454.40 and 399,629.58 is: 600,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,333.36 : 726,454.40 = 399,629.58 : x
  2. Step 2: Convert to fraction form
    483,333.36/726,454.40 = 399,629.58/x
  3. Step 3: Cross multiply
    483,333.36x = 726,454.40 × 399,629.58
  4. Step 4: Simplify right side
    483,333.36x = 290,312,664,763.00
  5. Step 5: Solve for x
    x = 290,312,664,763.00/483,333.36
  6. Step 6: Final answer
    x = 600,646.86

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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.