Home / 842,129.40-1,263,199.60-336,732.84

Finding the Fourth Proportional to 842,129.40, 1,263,199.60 and 336,732.84

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Solution

The fourth proportional to 842,129.40, 1,263,199.60 and 336,732.84 is: 505,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,129.40 : 1,263,199.60 = 336,732.84 : x
  2. Step 2: Convert to fraction form
    842,129.40/1,263,199.60 = 336,732.84/x
  3. Step 3: Cross multiply
    842,129.40x = 1,263,199.60 × 336,732.84
  4. Step 4: Simplify right side
    842,129.40x = 425,360,788,794.86
  5. Step 5: Solve for x
    x = 425,360,788,794.86/842,129.40
  6. Step 6: Final answer
    x = 505,101.46

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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.