Home / 547,215.36-820,909.44-210,242.56

Finding the Fourth Proportional to 547,215.36, 820,909.44 and 210,242.56

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Solution

The fourth proportional to 547,215.36, 820,909.44 and 210,242.56 is: 315,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,215.36 : 820,909.44 = 210,242.56 : x
  2. Step 2: Convert to fraction form
    547,215.36/820,909.44 = 210,242.56/x
  3. Step 3: Cross multiply
    547,215.36x = 820,909.44 × 210,242.56
  4. Step 4: Simplify right side
    547,215.36x = 172,590,102,193.77
  5. Step 5: Solve for x
    x = 172,590,102,193.77/547,215.36
  6. Step 6: Final answer
    x = 315,397.04

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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.