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Finding the Fourth Proportional to 554,699.36, 765,242 and 325,140.28

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Solution

The fourth proportional to 554,699.36, 765,242 and 325,140.28 is: 448,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,699.36 : 765,242 = 325,140.28 : x
  2. Step 2: Convert to fraction form
    554,699.36/765,242 = 325,140.28/x
  3. Step 3: Cross multiply
    554,699.36x = 765,242 × 325,140.28
  4. Step 4: Simplify right side
    554,699.36x = 248,810,998,147.76
  5. Step 5: Solve for x
    x = 248,810,998,147.76/554,699.36
  6. Step 6: Final answer
    x = 448,551.08

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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.