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Finding the Fourth Proportional to 946,978.27, 1,420,497.68 and 370,578.71

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Solution

The fourth proportional to 946,978.27, 1,420,497.68 and 370,578.71 is: 555,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,978.27 : 1,420,497.68 = 370,578.71 : x
  2. Step 2: Convert to fraction form
    946,978.27/1,420,497.68 = 370,578.71/x
  3. Step 3: Cross multiply
    946,978.27x = 1,420,497.68 × 370,578.71
  4. Step 4: Simplify right side
    946,978.27x = 526,406,197,812.39
  5. Step 5: Solve for x
    x = 526,406,197,812.39/946,978.27
  6. Step 6: Final answer
    x = 555,879.91

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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.