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Finding the Fourth Proportional to 606,978.12, 910,647.63 and 269,972.22

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Solution

The fourth proportional to 606,978.12, 910,647.63 and 269,972.22 is: 405,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,978.12 : 910,647.63 = 269,972.22 : x
  2. Step 2: Convert to fraction form
    606,978.12/910,647.63 = 269,972.22/x
  3. Step 3: Cross multiply
    606,978.12x = 910,647.63 × 269,972.22
  4. Step 4: Simplify right side
    606,978.12x = 245,849,562,308.84
  5. Step 5: Solve for x
    x = 245,849,562,308.84/606,978.12
  6. Step 6: Final answer
    x = 405,038.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.