Home / 828,869.58-1,143,841.77-489,359.70

Finding the Fourth Proportional to 828,869.58, 1,143,841.77 and 489,359.70

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Solution

The fourth proportional to 828,869.58, 1,143,841.77 and 489,359.70 is: 675,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,869.58 : 1,143,841.77 = 489,359.70 : x
  2. Step 2: Convert to fraction form
    828,869.58/1,143,841.77 = 489,359.70/x
  3. Step 3: Cross multiply
    828,869.58x = 1,143,841.77 × 489,359.70
  4. Step 4: Simplify right side
    828,869.58x = 559,750,065,414.67
  5. Step 5: Solve for x
    x = 559,750,065,414.67/828,869.58
  6. Step 6: Final answer
    x = 675,317.42

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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.