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Finding the Fourth Proportional to 554,554.28, 765,287.22 and 299,905.48

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Solution

The fourth proportional to 554,554.28, 765,287.22 and 299,905.48 is: 413,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,554.28 : 765,287.22 = 299,905.48 : x
  2. Step 2: Convert to fraction form
    554,554.28/765,287.22 = 299,905.48/x
  3. Step 3: Cross multiply
    554,554.28x = 765,287.22 × 299,905.48
  4. Step 4: Simplify right side
    554,554.28x = 229,513,831,051.97
  5. Step 5: Solve for x
    x = 229,513,831,051.97/554,554.28
  6. Step 6: Final answer
    x = 413,870.81

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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.