Home / 1,628,452.89-2,438,818.07-1,290,406.55

Finding the Fourth Proportional to 1,628,452.89, 2,438,818.07 and 1,290,406.55

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Solution

The fourth proportional to 1,628,452.89, 2,438,818.07 and 1,290,406.55 is: 1,932,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,452.89 : 2,438,818.07 = 1,290,406.55 : x
  2. Step 2: Convert to fraction form
    1,628,452.89/2,438,818.07 = 1,290,406.55/x
  3. Step 3: Cross multiply
    1,628,452.89x = 2,438,818.07 × 1,290,406.55
  4. Step 4: Simplify right side
    1,628,452.89x = 3,147,066,793,140.24
  5. Step 5: Solve for x
    x = 3,147,066,793,140.24/1,628,452.89
  6. Step 6: Final answer
    x = 1,932,550.10

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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.