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Finding the Fourth Proportional to 554,954.63, 765,838.06 and 300,305.81

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Solution

The fourth proportional to 554,954.63, 765,838.06 and 300,305.81 is: 414,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,954.63 : 765,838.06 = 300,305.81 : x
  2. Step 2: Convert to fraction form
    554,954.63/765,838.06 = 300,305.81/x
  3. Step 3: Cross multiply
    554,954.63x = 765,838.06 × 300,305.81
  4. Step 4: Simplify right side
    554,954.63x = 229,985,620,100.96
  5. Step 5: Solve for x
    x = 229,985,620,100.96/554,954.63
  6. Step 6: Final answer
    x = 414,422.39

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1.5x scale

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.