Home / 851,468.72-1,174,966.74-469,487.36

Finding the Fourth Proportional to 851,468.72, 1,174,966.74 and 469,487.36

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Solution

The fourth proportional to 851,468.72, 1,174,966.74 and 469,487.36 is: 647,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,468.72 : 1,174,966.74 = 469,487.36 : x
  2. Step 2: Convert to fraction form
    851,468.72/1,174,966.74 = 469,487.36/x
  3. Step 3: Cross multiply
    851,468.72x = 1,174,966.74 × 469,487.36
  4. Step 4: Simplify right side
    851,468.72x = 551,632,032,850.41
  5. Step 5: Solve for x
    x = 551,632,032,850.41/851,468.72
  6. Step 6: Final answer
    x = 647,859.42

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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.