Home / 772,128.11-1,158,374.37-266,693.27

Finding the Fourth Proportional to 772,128.11, 1,158,374.37 and 266,693.27

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Solution

The fourth proportional to 772,128.11, 1,158,374.37 and 266,693.27 is: 400,102.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,128.11 : 1,158,374.37 = 266,693.27 : x
  2. Step 2: Convert to fraction form
    772,128.11/1,158,374.37 = 266,693.27/x
  3. Step 3: Cross multiply
    772,128.11x = 1,158,374.37 × 266,693.27
  4. Step 4: Simplify right side
    772,128.11x = 308,930,648,619.49
  5. Step 5: Solve for x
    x = 308,930,648,619.49/772,128.11
  6. Step 6: Final answer
    x = 400,102.84

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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.