Home / 1,133,644.80-1,702,310.40-820,300.80

Finding the Fourth Proportional to 1,133,644.80, 1,702,310.40 and 820,300.80

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Solution

The fourth proportional to 1,133,644.80, 1,702,310.40 and 820,300.80 is: 1,231,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,644.80 : 1,702,310.40 = 820,300.80 : x
  2. Step 2: Convert to fraction form
    1,133,644.80/1,702,310.40 = 820,300.80/x
  3. Step 3: Cross multiply
    1,133,644.80x = 1,702,310.40 × 820,300.80
  4. Step 4: Simplify right side
    1,133,644.80x = 1,396,406,582,968.32
  5. Step 5: Solve for x
    x = 1,396,406,582,968.32/1,133,644.80
  6. Step 6: Final answer
    x = 1,231,784.93

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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.