Home / 1,229,657.22-1,696,928.40-678,360.42

Finding the Fourth Proportional to 1,229,657.22, 1,696,928.40 and 678,360.42

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Solution

The fourth proportional to 1,229,657.22, 1,696,928.40 and 678,360.42 is: 936,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,657.22 : 1,696,928.40 = 678,360.42 : x
  2. Step 2: Convert to fraction form
    1,229,657.22/1,696,928.40 = 678,360.42/x
  3. Step 3: Cross multiply
    1,229,657.22x = 1,696,928.40 × 678,360.42
  4. Step 4: Simplify right side
    1,229,657.22x = 1,151,129,062,133.93
  5. Step 5: Solve for x
    x = 1,151,129,062,133.93/1,229,657.22
  6. Step 6: Final answer
    x = 936,138.17

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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.