Home / 572,821.60-858,908.40-217,847.20

Finding the Fourth Proportional to 572,821.60, 858,908.40 and 217,847.20

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Solution

The fourth proportional to 572,821.60, 858,908.40 and 217,847.20 is: 326,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,821.60 : 858,908.40 = 217,847.20 : x
  2. Step 2: Convert to fraction form
    572,821.60/858,908.40 = 217,847.20/x
  3. Step 3: Cross multiply
    572,821.60x = 858,908.40 × 217,847.20
  4. Step 4: Simplify right side
    572,821.60x = 187,110,789,996.48
  5. Step 5: Solve for x
    x = 187,110,789,996.48/572,821.60
  6. Step 6: Final answer
    x = 326,647.58

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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.