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Finding the Fourth Proportional to 554,998.22, 765,897.54 and 300,349.46

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Solution

The fourth proportional to 554,998.22, 765,897.54 and 300,349.46 is: 414,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,998.22 : 765,897.54 = 300,349.46 : x
  2. Step 2: Convert to fraction form
    554,998.22/765,897.54 = 300,349.46/x
  3. Step 3: Cross multiply
    554,998.22x = 765,897.54 × 300,349.46
  4. Step 4: Simplify right side
    554,998.22x = 230,036,912,554.33
  5. Step 5: Solve for x
    x = 230,036,912,554.33/554,998.22
  6. Step 6: Final answer
    x = 414,482.25

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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.