Home / 621,123.83-857,145.73-349,192.94

Finding the Fourth Proportional to 621,123.83, 857,145.73 and 349,192.94

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Solution

The fourth proportional to 621,123.83, 857,145.73 and 349,192.94 is: 481,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,123.83 : 857,145.73 = 349,192.94 : x
  2. Step 2: Convert to fraction form
    621,123.83/857,145.73 = 349,192.94/x
  3. Step 3: Cross multiply
    621,123.83x = 857,145.73 × 349,192.94
  4. Step 4: Simplify right side
    621,123.83x = 299,309,237,467.15
  5. Step 5: Solve for x
    x = 299,309,237,467.15/621,123.83
  6. Step 6: Final answer
    x = 481,883.36

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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.