Home / 828,081.79-1,142,677.46-479,161.88

Finding the Fourth Proportional to 828,081.79, 1,142,677.46 and 479,161.88

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Solution

The fourth proportional to 828,081.79, 1,142,677.46 and 479,161.88 is: 661,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,081.79 : 1,142,677.46 = 479,161.88 : x
  2. Step 2: Convert to fraction form
    828,081.79/1,142,677.46 = 479,161.88/x
  3. Step 3: Cross multiply
    828,081.79x = 1,142,677.46 × 479,161.88
  4. Step 4: Simplify right side
    828,081.79x = 547,527,485,450.17
  5. Step 5: Solve for x
    x = 547,527,485,450.17/828,081.79
  6. Step 6: Final answer
    x = 661,199.77

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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.