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Finding the Fourth Proportional to 554,851.92, 765,695.63 and 300,203.11

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Solution

The fourth proportional to 554,851.92, 765,695.63 and 300,203.11 is: 414,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,851.92 : 765,695.63 = 300,203.11 : x
  2. Step 2: Convert to fraction form
    554,851.92/765,695.63 = 300,203.11/x
  3. Step 3: Cross multiply
    554,851.92x = 765,695.63 × 300,203.11
  4. Step 4: Simplify right side
    554,851.92x = 229,864,211,147.04
  5. Step 5: Solve for x
    x = 229,864,211,147.04/554,851.92
  6. Step 6: Final answer
    x = 414,280.28

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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.