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Finding the Fourth Proportional to 572,351.40, 858,527.10 and 198,412.20

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Solution

The fourth proportional to 572,351.40, 858,527.10 and 198,412.20 is: 297,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,351.40 : 858,527.10 = 198,412.20 : x
  2. Step 2: Convert to fraction form
    572,351.40/858,527.10 = 198,412.20/x
  3. Step 3: Cross multiply
    572,351.40x = 858,527.10 × 198,412.20
  4. Step 4: Simplify right side
    572,351.40x = 170,342,250,670.62
  5. Step 5: Solve for x
    x = 170,342,250,670.62/572,351.40
  6. Step 6: Final answer
    x = 297,618.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.