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Finding the Fourth Proportional to 822,978.22, 1,234,342.60 and 223,986.06

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Solution

The fourth proportional to 822,978.22, 1,234,342.60 and 223,986.06 is: 335,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,978.22 : 1,234,342.60 = 223,986.06 : x
  2. Step 2: Convert to fraction form
    822,978.22/1,234,342.60 = 223,986.06/x
  3. Step 3: Cross multiply
    822,978.22x = 1,234,342.60 × 223,986.06
  4. Step 4: Simplify right side
    822,978.22x = 276,475,535,664.16
  5. Step 5: Solve for x
    x = 276,475,535,664.16/822,978.22
  6. Step 6: Final answer
    x = 335,945.14

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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.