Home / 947,983.52-1,308,249.24-518,255.12

Finding the Fourth Proportional to 947,983.52, 1,308,249.24 and 518,255.12

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Solution

The fourth proportional to 947,983.52, 1,308,249.24 and 518,255.12 is: 715,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,983.52 : 1,308,249.24 = 518,255.12 : x
  2. Step 2: Convert to fraction form
    947,983.52/1,308,249.24 = 518,255.12/x
  3. Step 3: Cross multiply
    947,983.52x = 1,308,249.24 × 518,255.12
  4. Step 4: Simplify right side
    947,983.52x = 678,006,866,866.11
  5. Step 5: Solve for x
    x = 678,006,866,866.11/947,983.52
  6. Step 6: Final answer
    x = 715,209.55

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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.