Home / 840,942.88-1,261,539.14-272,133.32

Finding the Fourth Proportional to 840,942.88, 1,261,539.14 and 272,133.32

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Solution

The fourth proportional to 840,942.88, 1,261,539.14 and 272,133.32 is: 408,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,942.88 : 1,261,539.14 = 272,133.32 : x
  2. Step 2: Convert to fraction form
    840,942.88/1,261,539.14 = 272,133.32/x
  3. Step 3: Cross multiply
    840,942.88x = 1,261,539.14 × 272,133.32
  4. Step 4: Simplify right side
    840,942.88x = 343,306,834,478.15
  5. Step 5: Solve for x
    x = 343,306,834,478.15/840,942.88
  6. Step 6: Final answer
    x = 408,240.37

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1.5x scale

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.