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Finding the Fourth Proportional to 572,551.70, 859,155.60 and 217,820.30

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Solution

The fourth proportional to 572,551.70, 859,155.60 and 217,820.30 is: 326,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,551.70 : 859,155.60 = 217,820.30 : x
  2. Step 2: Convert to fraction form
    572,551.70/859,155.60 = 217,820.30/x
  3. Step 3: Cross multiply
    572,551.70x = 859,155.60 × 217,820.30
  4. Step 4: Simplify right side
    572,551.70x = 187,141,530,538.68
  5. Step 5: Solve for x
    x = 187,141,530,538.68/572,551.70
  6. Step 6: Final answer
    x = 326,855.25

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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.