Home / 515,585.32-772,462.94-215,405.26

Finding the Fourth Proportional to 515,585.32, 772,462.94 and 215,405.26

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Solution

The fourth proportional to 515,585.32, 772,462.94 and 215,405.26 is: 322,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,585.32 : 772,462.94 = 215,405.26 : x
  2. Step 2: Convert to fraction form
    515,585.32/772,462.94 = 215,405.26/x
  3. Step 3: Cross multiply
    515,585.32x = 772,462.94 × 215,405.26
  4. Step 4: Simplify right side
    515,585.32x = 166,392,580,431.06
  5. Step 5: Solve for x
    x = 166,392,580,431.06/515,585.32
  6. Step 6: Final answer
    x = 322,725.60

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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.