Home / 515,585.07-772,462.56-215,405.01

Finding the Fourth Proportional to 515,585.07, 772,462.56 and 215,405.01

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Solution

The fourth proportional to 515,585.07, 772,462.56 and 215,405.01 is: 322,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,585.07 : 772,462.56 = 215,405.01 : x
  2. Step 2: Convert to fraction form
    515,585.07/772,462.56 = 215,405.01/x
  3. Step 3: Cross multiply
    515,585.07x = 772,462.56 × 215,405.01
  4. Step 4: Simplify right side
    515,585.07x = 166,392,305,461.43
  5. Step 5: Solve for x
    x = 166,392,305,461.43/515,585.07
  6. Step 6: Final answer
    x = 322,725.22

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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.