Home / 1,603,762.12-2,212,351.95-991,719.64

Finding the Fourth Proportional to 1,603,762.12, 2,212,351.95 and 991,719.64

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Solution

The fourth proportional to 1,603,762.12, 2,212,351.95 and 991,719.64 is: 1,368,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,762.12 : 2,212,351.95 = 991,719.64 : x
  2. Step 2: Convert to fraction form
    1,603,762.12/2,212,351.95 = 991,719.64/x
  3. Step 3: Cross multiply
    1,603,762.12x = 2,212,351.95 × 991,719.64
  4. Step 4: Simplify right side
    1,603,762.12x = 2,194,032,879,407.30
  5. Step 5: Solve for x
    x = 2,194,032,879,407.30/1,603,762.12
  6. Step 6: Final answer
    x = 1,368,053.81

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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.