Home / 413,039.72-618,559.20-210,101.92

Finding the Fourth Proportional to 413,039.72, 618,559.20 and 210,101.92

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Solution

The fourth proportional to 413,039.72, 618,559.20 and 210,101.92 is: 314,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,039.72 : 618,559.20 = 210,101.92 : x
  2. Step 2: Convert to fraction form
    413,039.72/618,559.20 = 210,101.92/x
  3. Step 3: Cross multiply
    413,039.72x = 618,559.20 × 210,101.92
  4. Step 4: Simplify right side
    413,039.72x = 129,960,474,007.27
  5. Step 5: Solve for x
    x = 129,960,474,007.27/413,039.72
  6. Step 6: Final answer
    x = 314,644.01

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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.