Home / 1,121,047.72-1,681,362.04-300,396

Finding the Fourth Proportional to 1,121,047.72, 1,681,362.04 and 300,396

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Solution

The fourth proportional to 1,121,047.72, 1,681,362.04 and 300,396 is: 450,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,047.72 : 1,681,362.04 = 300,396 : x
  2. Step 2: Convert to fraction form
    1,121,047.72/1,681,362.04 = 300,396/x
  3. Step 3: Cross multiply
    1,121,047.72x = 1,681,362.04 × 300,396
  4. Step 4: Simplify right side
    1,121,047.72x = 505,074,431,367.84
  5. Step 5: Solve for x
    x = 505,074,431,367.84/1,121,047.72
  6. Step 6: Final answer
    x = 450,537.85

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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.