Home / 576,971.45-865,494.01-221,985.36

Finding the Fourth Proportional to 576,971.45, 865,494.01 and 221,985.36

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Solution

The fourth proportional to 576,971.45, 865,494.01 and 221,985.36 is: 332,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,971.45 : 865,494.01 = 221,985.36 : x
  2. Step 2: Convert to fraction form
    576,971.45/865,494.01 = 221,985.36/x
  3. Step 3: Cross multiply
    576,971.45x = 865,494.01 × 221,985.36
  4. Step 4: Simplify right side
    576,971.45x = 192,126,999,665.18
  5. Step 5: Solve for x
    x = 192,126,999,665.18/576,971.45
  6. Step 6: Final answer
    x = 332,992.21

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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.