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Finding the Fourth Proportional to 611,860.94, 917,476.27 and 274,612.48

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Solution

The fourth proportional to 611,860.94, 917,476.27 and 274,612.48 is: 411,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,860.94 : 917,476.27 = 274,612.48 : x
  2. Step 2: Convert to fraction form
    611,860.94/917,476.27 = 274,612.48/x
  3. Step 3: Cross multiply
    611,860.94x = 917,476.27 × 274,612.48
  4. Step 4: Simplify right side
    611,860.94x = 251,950,430,865.63
  5. Step 5: Solve for x
    x = 251,950,430,865.63/611,860.94
  6. Step 6: Final answer
    x = 411,777.28

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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.