Home / 828,636.96-1,242,956.16-355,015.20

Finding the Fourth Proportional to 828,636.96, 1,242,956.16 and 355,015.20

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Solution

The fourth proportional to 828,636.96, 1,242,956.16 and 355,015.20 is: 532,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,636.96 : 1,242,956.16 = 355,015.20 : x
  2. Step 2: Convert to fraction form
    828,636.96/1,242,956.16 = 355,015.20/x
  3. Step 3: Cross multiply
    828,636.96x = 1,242,956.16 × 355,015.20
  4. Step 4: Simplify right side
    828,636.96x = 441,268,329,733.63
  5. Step 5: Solve for x
    x = 441,268,329,733.63/828,636.96
  6. Step 6: Final answer
    x = 532,523.11

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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.