Home / 828,195.80-1,243,022.70-490,814.60

Finding the Fourth Proportional to 828,195.80, 1,243,022.70 and 490,814.60

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Solution

The fourth proportional to 828,195.80, 1,243,022.70 and 490,814.60 is: 736,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,195.80 : 1,243,022.70 = 490,814.60 : x
  2. Step 2: Convert to fraction form
    828,195.80/1,243,022.70 = 490,814.60/x
  3. Step 3: Cross multiply
    828,195.80x = 1,243,022.70 × 490,814.60
  4. Step 4: Simplify right side
    828,195.80x = 610,093,689,291.42
  5. Step 5: Solve for x
    x = 610,093,689,291.42/828,195.80
  6. Step 6: Final answer
    x = 736,653.93

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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.