Home / 947,974.80-1,308,209.84-518,254.93

Finding the Fourth Proportional to 947,974.80, 1,308,209.84 and 518,254.93

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Solution

The fourth proportional to 947,974.80, 1,308,209.84 and 518,254.93 is: 715,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,974.80 : 1,308,209.84 = 518,254.93 : x
  2. Step 2: Convert to fraction form
    947,974.80/1,308,209.84 = 518,254.93/x
  3. Step 3: Cross multiply
    947,974.80x = 1,308,209.84 × 518,254.93
  4. Step 4: Simplify right side
    947,974.80x = 677,986,193,803.00
  5. Step 5: Solve for x
    x = 677,986,193,803.00/947,974.80
  6. Step 6: Final answer
    x = 715,194.32

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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.