Home / 515,422.05-773,434.47-215,877.54

Finding the Fourth Proportional to 515,422.05, 773,434.47 and 215,877.54

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Solution

The fourth proportional to 515,422.05, 773,434.47 and 215,877.54 is: 323,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,422.05 : 773,434.47 = 215,877.54 : x
  2. Step 2: Convert to fraction form
    515,422.05/773,434.47 = 215,877.54/x
  3. Step 3: Cross multiply
    515,422.05x = 773,434.47 × 215,877.54
  4. Step 4: Simplify right side
    515,422.05x = 166,967,130,094.16
  5. Step 5: Solve for x
    x = 166,967,130,094.16/515,422.05
  6. Step 6: Final answer
    x = 323,942.54

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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.