Home / 828,196.80-1,243,024.20-490,815.60

Finding the Fourth Proportional to 828,196.80, 1,243,024.20 and 490,815.60

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Solution

The fourth proportional to 828,196.80, 1,243,024.20 and 490,815.60 is: 736,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,196.80 : 1,243,024.20 = 490,815.60 : x
  2. Step 2: Convert to fraction form
    828,196.80/1,243,024.20 = 490,815.60/x
  3. Step 3: Cross multiply
    828,196.80x = 1,243,024.20 × 490,815.60
  4. Step 4: Simplify right side
    828,196.80x = 610,095,668,537.52
  5. Step 5: Solve for x
    x = 610,095,668,537.52/828,196.80
  6. Step 6: Final answer
    x = 736,655.43

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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.