Home / 516,410.26-712,620.11-286,962.61

Finding the Fourth Proportional to 516,410.26, 712,620.11 and 286,962.61

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Solution

The fourth proportional to 516,410.26, 712,620.11 and 286,962.61 is: 395,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,410.26 : 712,620.11 = 286,962.61 : x
  2. Step 2: Convert to fraction form
    516,410.26/712,620.11 = 286,962.61/x
  3. Step 3: Cross multiply
    516,410.26x = 712,620.11 × 286,962.61
  4. Step 4: Simplify right side
    516,410.26x = 204,495,326,704.09
  5. Step 5: Solve for x
    x = 204,495,326,704.09/516,410.26
  6. Step 6: Final answer
    x = 395,993.93

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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.