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Finding the Fourth Proportional to 518,863.80, 716,049.78 and 301,056.02

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Solution

The fourth proportional to 518,863.80, 716,049.78 and 301,056.02 is: 415,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,863.80 : 716,049.78 = 301,056.02 : x
  2. Step 2: Convert to fraction form
    518,863.80/716,049.78 = 301,056.02/x
  3. Step 3: Cross multiply
    518,863.80x = 716,049.78 × 301,056.02
  4. Step 4: Simplify right side
    518,863.80x = 215,571,096,888.68
  5. Step 5: Solve for x
    x = 215,571,096,888.68/518,863.80
  6. Step 6: Final answer
    x = 415,467.60

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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.