Home / 772,128.80-1,158,135.60-322,733.60

Finding the Fourth Proportional to 772,128.80, 1,158,135.60 and 322,733.60

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Solution

The fourth proportional to 772,128.80, 1,158,135.60 and 322,733.60 is: 484,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,128.80 : 1,158,135.60 = 322,733.60 : x
  2. Step 2: Convert to fraction form
    772,128.80/1,158,135.60 = 322,733.60/x
  3. Step 3: Cross multiply
    772,128.80x = 1,158,135.60 × 322,733.60
  4. Step 4: Simplify right side
    772,128.80x = 373,769,271,476.16
  5. Step 5: Solve for x
    x = 373,769,271,476.16/772,128.80
  6. Step 6: Final answer
    x = 484,076.32

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1.5x scale

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.