Home / 851,168.86-1,174,621.11-469,209.31

Finding the Fourth Proportional to 851,168.86, 1,174,621.11 and 469,209.31

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Solution

The fourth proportional to 851,168.86, 1,174,621.11 and 469,209.31 is: 647,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,168.86 : 1,174,621.11 = 469,209.31 : x
  2. Step 2: Convert to fraction form
    851,168.86/1,174,621.11 = 469,209.31/x
  3. Step 3: Cross multiply
    851,168.86x = 1,174,621.11 × 469,209.31
  4. Step 4: Simplify right side
    851,168.86x = 551,143,160,534.53
  5. Step 5: Solve for x
    x = 551,143,160,534.53/851,168.86
  6. Step 6: Final answer
    x = 647,513.30

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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.