Home / 515,311.22-772,865.12-173,720.84

Finding the Fourth Proportional to 515,311.22, 772,865.12 and 173,720.84

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Solution

The fourth proportional to 515,311.22, 772,865.12 and 173,720.84 is: 260,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,311.22 : 772,865.12 = 173,720.84 : x
  2. Step 2: Convert to fraction form
    515,311.22/772,865.12 = 173,720.84/x
  3. Step 3: Cross multiply
    515,311.22x = 772,865.12 × 173,720.84
  4. Step 4: Simplify right side
    515,311.22x = 134,262,777,853.10
  5. Step 5: Solve for x
    x = 134,262,777,853.10/515,311.22
  6. Step 6: Final answer
    x = 260,546.97

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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.