Home / 1,277,092.89-1,914,753.51-678,474.45

Finding the Fourth Proportional to 1,277,092.89, 1,914,753.51 and 678,474.45

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Solution

The fourth proportional to 1,277,092.89, 1,914,753.51 and 678,474.45 is: 1,017,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,092.89 : 1,914,753.51 = 678,474.45 : x
  2. Step 2: Convert to fraction form
    1,277,092.89/1,914,753.51 = 678,474.45/x
  3. Step 3: Cross multiply
    1,277,092.89x = 1,914,753.51 × 678,474.45
  4. Step 4: Simplify right side
    1,277,092.89x = 1,299,111,334,582.82
  5. Step 5: Solve for x
    x = 1,299,111,334,582.82/1,277,092.89
  6. Step 6: Final answer
    x = 1,017,241.07

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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.