Home / 772,078.09-1,158,271.92-266,657.60

Finding the Fourth Proportional to 772,078.09, 1,158,271.92 and 266,657.60

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Solution

The fourth proportional to 772,078.09, 1,158,271.92 and 266,657.60 is: 400,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,078.09 : 1,158,271.92 = 266,657.60 : x
  2. Step 2: Convert to fraction form
    772,078.09/1,158,271.92 = 266,657.60/x
  3. Step 3: Cross multiply
    772,078.09x = 1,158,271.92 × 266,657.60
  4. Step 4: Simplify right side
    772,078.09x = 308,862,010,334.59
  5. Step 5: Solve for x
    x = 308,862,010,334.59/772,078.09
  6. Step 6: Final answer
    x = 400,039.86

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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.