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Finding the Fourth Proportional to 571,020.44, 856,638.80 and 229,490.40

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Solution

The fourth proportional to 571,020.44, 856,638.80 and 229,490.40 is: 344,279.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,020.44 : 856,638.80 = 229,490.40 : x
  2. Step 2: Convert to fraction form
    571,020.44/856,638.80 = 229,490.40/x
  3. Step 3: Cross multiply
    571,020.44x = 856,638.80 × 229,490.40
  4. Step 4: Simplify right side
    571,020.44x = 196,590,385,083.94
  5. Step 5: Solve for x
    x = 196,590,385,083.94/571,020.44
  6. Step 6: Final answer
    x = 344,279.07

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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.