Home / 808,109.94-1,115,406.60-477,255.72

Finding the Fourth Proportional to 808,109.94, 1,115,406.60 and 477,255.72

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Solution

The fourth proportional to 808,109.94, 1,115,406.60 and 477,255.72 is: 658,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,109.94 : 1,115,406.60 = 477,255.72 : x
  2. Step 2: Convert to fraction form
    808,109.94/1,115,406.60 = 477,255.72/x
  3. Step 3: Cross multiply
    808,109.94x = 1,115,406.60 × 477,255.72
  4. Step 4: Simplify right side
    808,109.94x = 532,334,179,975.75
  5. Step 5: Solve for x
    x = 532,334,179,975.75/808,109.94
  6. Step 6: Final answer
    x = 658,739.80

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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.