Home / 772,140.80-1,158,153.60-322,745.60

Finding the Fourth Proportional to 772,140.80, 1,158,153.60 and 322,745.60

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Solution

The fourth proportional to 772,140.80, 1,158,153.60 and 322,745.60 is: 484,094.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,140.80 : 1,158,153.60 = 322,745.60 : x
  2. Step 2: Convert to fraction form
    772,140.80/1,158,153.60 = 322,745.60/x
  3. Step 3: Cross multiply
    772,140.80x = 1,158,153.60 × 322,745.60
  4. Step 4: Simplify right side
    772,140.80x = 373,788,978,524.16
  5. Step 5: Solve for x
    x = 373,788,978,524.16/772,140.80
  6. Step 6: Final answer
    x = 484,094.32

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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.