Home / 828,986.92-1,144,043.94-489,447.88

Finding the Fourth Proportional to 828,986.92, 1,144,043.94 and 489,447.88

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Solution

The fourth proportional to 828,986.92, 1,144,043.94 and 489,447.88 is: 675,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,986.92 : 1,144,043.94 = 489,447.88 : x
  2. Step 2: Convert to fraction form
    828,986.92/1,144,043.94 = 489,447.88/x
  3. Step 3: Cross multiply
    828,986.92x = 1,144,043.94 × 489,447.88
  4. Step 4: Simplify right side
    828,986.92x = 559,949,881,059.85
  5. Step 5: Solve for x
    x = 559,949,881,059.85/828,986.92
  6. Step 6: Final answer
    x = 675,462.87

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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.