Home / 947,884.28-1,308,077.34-518,164.60

Finding the Fourth Proportional to 947,884.28, 1,308,077.34 and 518,164.60

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Solution

The fourth proportional to 947,884.28, 1,308,077.34 and 518,164.60 is: 715,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,884.28 : 1,308,077.34 = 518,164.60 : x
  2. Step 2: Convert to fraction form
    947,884.28/1,308,077.34 = 518,164.60/x
  3. Step 3: Cross multiply
    947,884.28x = 1,308,077.34 × 518,164.60
  4. Step 4: Simplify right side
    947,884.28x = 677,799,371,650.16
  5. Step 5: Solve for x
    x = 677,799,371,650.16/947,884.28
  6. Step 6: Final answer
    x = 715,065.53

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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.