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Finding the Fourth Proportional to 570,487.46, 787,284.77 and 312,375.29

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Solution

The fourth proportional to 570,487.46, 787,284.77 and 312,375.29 is: 431,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,487.46 : 787,284.77 = 312,375.29 : x
  2. Step 2: Convert to fraction form
    570,487.46/787,284.77 = 312,375.29/x
  3. Step 3: Cross multiply
    570,487.46x = 787,284.77 × 312,375.29
  4. Step 4: Simplify right side
    570,487.46x = 245,928,302,843.03
  5. Step 5: Solve for x
    x = 245,928,302,843.03/570,487.46
  6. Step 6: Final answer
    x = 431,084.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.