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Finding the Fourth Proportional to 652,252.80, 978,379.20 and 315,454.80

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Solution

The fourth proportional to 652,252.80, 978,379.20 and 315,454.80 is: 473,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,252.80 : 978,379.20 = 315,454.80 : x
  2. Step 2: Convert to fraction form
    652,252.80/978,379.20 = 315,454.80/x
  3. Step 3: Cross multiply
    652,252.80x = 978,379.20 × 315,454.80
  4. Step 4: Simplify right side
    652,252.80x = 308,634,414,860.16
  5. Step 5: Solve for x
    x = 308,634,414,860.16/652,252.80
  6. Step 6: Final answer
    x = 473,182.20

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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.