Home / 1,211,693.52-1,672,131.60-660,408.30

Finding the Fourth Proportional to 1,211,693.52, 1,672,131.60 and 660,408.30

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Solution

The fourth proportional to 1,211,693.52, 1,672,131.60 and 660,408.30 is: 911,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,693.52 : 1,672,131.60 = 660,408.30 : x
  2. Step 2: Convert to fraction form
    1,211,693.52/1,672,131.60 = 660,408.30/x
  3. Step 3: Cross multiply
    1,211,693.52x = 1,672,131.60 × 660,408.30
  4. Step 4: Simplify right side
    1,211,693.52x = 1,104,289,587,332.28
  5. Step 5: Solve for x
    x = 1,104,289,587,332.28/1,211,693.52
  6. Step 6: Final answer
    x = 911,360.48

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1.5x scale

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.