Home / 621,086.10-931,825.98-221,718.02

Finding the Fourth Proportional to 621,086.10, 931,825.98 and 221,718.02

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Solution

The fourth proportional to 621,086.10, 931,825.98 and 221,718.02 is: 332,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,086.10 : 931,825.98 = 221,718.02 : x
  2. Step 2: Convert to fraction form
    621,086.10/931,825.98 = 221,718.02/x
  3. Step 3: Cross multiply
    621,086.10x = 931,825.98 × 221,718.02
  4. Step 4: Simplify right side
    621,086.10x = 206,602,611,270.16
  5. Step 5: Solve for x
    x = 206,602,611,270.16/621,086.10
  6. Step 6: Final answer
    x = 332,647.30

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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.