Home / 1,603,149.76-2,212,346.67-877,999.21

Finding the Fourth Proportional to 1,603,149.76, 2,212,346.67 and 877,999.21

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Solution

The fourth proportional to 1,603,149.76, 2,212,346.67 and 877,999.21 is: 1,211,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,149.76 : 2,212,346.67 = 877,999.21 : x
  2. Step 2: Convert to fraction form
    1,603,149.76/2,212,346.67 = 877,999.21/x
  3. Step 3: Cross multiply
    1,603,149.76x = 2,212,346.67 × 877,999.21
  4. Step 4: Simplify right side
    1,603,149.76x = 1,942,438,628,506.13
  5. Step 5: Solve for x
    x = 1,942,438,628,506.13/1,603,149.76
  6. Step 6: Final answer
    x = 1,211,638.91

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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.