Home / 947,976.30-1,308,211.91-518,256.43

Finding the Fourth Proportional to 947,976.30, 1,308,211.91 and 518,256.43

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Solution

The fourth proportional to 947,976.30, 1,308,211.91 and 518,256.43 is: 715,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,976.30 : 1,308,211.91 = 518,256.43 : x
  2. Step 2: Convert to fraction form
    947,976.30/1,308,211.91 = 518,256.43/x
  3. Step 3: Cross multiply
    947,976.30x = 1,308,211.91 × 518,256.43
  4. Step 4: Simplify right side
    947,976.30x = 677,989,234,160.08
  5. Step 5: Solve for x
    x = 677,989,234,160.08/947,976.30
  6. Step 6: Final answer
    x = 715,196.40

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Why These Related Problems?

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