Home / 1,603,961.40-2,213,521.77-878,806.86

Finding the Fourth Proportional to 1,603,961.40, 2,213,521.77 and 878,806.86

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Solution

The fourth proportional to 1,603,961.40, 2,213,521.77 and 878,806.86 is: 1,212,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,961.40 : 2,213,521.77 = 878,806.86 : x
  2. Step 2: Convert to fraction form
    1,603,961.40/2,213,521.77 = 878,806.86/x
  3. Step 3: Cross multiply
    1,603,961.40x = 2,213,521.77 × 878,806.86
  4. Step 4: Simplify right side
    1,603,961.40x = 1,945,258,116,235.34
  5. Step 5: Solve for x
    x = 1,945,258,116,235.34/1,603,961.40
  6. Step 6: Final answer
    x = 1,212,783.62

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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.