Home / 1,347,009.55-2,021,990.55-842,140.60

Finding the Fourth Proportional to 1,347,009.55, 2,021,990.55 and 842,140.60

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Solution

The fourth proportional to 1,347,009.55, 2,021,990.55 and 842,140.60 is: 1,264,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,009.55 : 2,021,990.55 = 842,140.60 : x
  2. Step 2: Convert to fraction form
    1,347,009.55/2,021,990.55 = 842,140.60/x
  3. Step 3: Cross multiply
    1,347,009.55x = 2,021,990.55 × 842,140.60
  4. Step 4: Simplify right side
    1,347,009.55x = 1,702,800,334,971.33
  5. Step 5: Solve for x
    x = 1,702,800,334,971.33/1,347,009.55
  6. Step 6: Final answer
    x = 1,264,133.83

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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.