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Finding the Fourth Proportional to 381,707.40, 572,561.10 and 364,211.40

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Solution

The fourth proportional to 381,707.40, 572,561.10 and 364,211.40 is: 546,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,707.40 : 572,561.10 = 364,211.40 : x
  2. Step 2: Convert to fraction form
    381,707.40/572,561.10 = 364,211.40/x
  3. Step 3: Cross multiply
    381,707.40x = 572,561.10 × 364,211.40
  4. Step 4: Simplify right side
    381,707.40x = 208,533,279,816.54
  5. Step 5: Solve for x
    x = 208,533,279,816.54/381,707.40
  6. Step 6: Final answer
    x = 546,317.10

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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.