Home / 947,883.15-1,308,078.86-518,165.19

Finding the Fourth Proportional to 947,883.15, 1,308,078.86 and 518,165.19

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Solution

The fourth proportional to 947,883.15, 1,308,078.86 and 518,165.19 is: 715,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,883.15 : 1,308,078.86 = 518,165.19 : x
  2. Step 2: Convert to fraction form
    947,883.15/1,308,078.86 = 518,165.19/x
  3. Step 3: Cross multiply
    947,883.15x = 1,308,078.86 × 518,165.19
  4. Step 4: Simplify right side
    947,883.15x = 677,800,928,436.06
  5. Step 5: Solve for x
    x = 677,800,928,436.06/947,883.15
  6. Step 6: Final answer
    x = 715,068.02

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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.