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Finding the Fourth Proportional to 550,412.14, 759,610.36 and 305,443.27

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Solution

The fourth proportional to 550,412.14, 759,610.36 and 305,443.27 is: 421,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,412.14 : 759,610.36 = 305,443.27 : x
  2. Step 2: Convert to fraction form
    550,412.14/759,610.36 = 305,443.27/x
  3. Step 3: Cross multiply
    550,412.14x = 759,610.36 × 305,443.27
  4. Step 4: Simplify right side
    550,412.14x = 232,017,872,284.28
  5. Step 5: Solve for x
    x = 232,017,872,284.28/550,412.14
  6. Step 6: Final answer
    x = 421,534.80

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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.