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Finding the Fourth Proportional to 542,676.90, 748,840.77 and 300,955.26

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Solution

The fourth proportional to 542,676.90, 748,840.77 and 300,955.26 is: 415,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,676.90 : 748,840.77 = 300,955.26 : x
  2. Step 2: Convert to fraction form
    542,676.90/748,840.77 = 300,955.26/x
  3. Step 3: Cross multiply
    542,676.90x = 748,840.77 × 300,955.26
  4. Step 4: Simplify right side
    542,676.90x = 225,367,568,633.95
  5. Step 5: Solve for x
    x = 225,367,568,633.95/542,676.90
  6. Step 6: Final answer
    x = 415,288.67

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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.