Home / 1,121,745.10-1,682,289.60-402,003.40

Finding the Fourth Proportional to 1,121,745.10, 1,682,289.60 and 402,003.40

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Solution

The fourth proportional to 1,121,745.10, 1,682,289.60 and 402,003.40 is: 602,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,745.10 : 1,682,289.60 = 402,003.40 : x
  2. Step 2: Convert to fraction form
    1,121,745.10/1,682,289.60 = 402,003.40/x
  3. Step 3: Cross multiply
    1,121,745.10x = 1,682,289.60 × 402,003.40
  4. Step 4: Simplify right side
    1,121,745.10x = 676,286,138,984.64
  5. Step 5: Solve for x
    x = 676,286,138,984.64/1,121,745.10
  6. Step 6: Final answer
    x = 602,887.54

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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.