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Finding the Fourth Proportional to 646,870.80, 970,481.16 and 366,584.88

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Solution

The fourth proportional to 646,870.80, 970,481.16 and 366,584.88 is: 549,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,870.80 : 970,481.16 = 366,584.88 : x
  2. Step 2: Convert to fraction form
    646,870.80/970,481.16 = 366,584.88/x
  3. Step 3: Cross multiply
    646,870.80x = 970,481.16 × 366,584.88
  4. Step 4: Simplify right side
    646,870.80x = 355,763,719,580.86
  5. Step 5: Solve for x
    x = 355,763,719,580.86/646,870.80
  6. Step 6: Final answer
    x = 549,976.47

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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.