Home / 1,199,533.78-1,799,615.73-431,109.04

Finding the Fourth Proportional to 1,199,533.78, 1,799,615.73 and 431,109.04

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Solution

The fourth proportional to 1,199,533.78, 1,799,615.73 and 431,109.04 is: 646,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,533.78 : 1,799,615.73 = 431,109.04 : x
  2. Step 2: Convert to fraction form
    1,199,533.78/1,799,615.73 = 431,109.04/x
  3. Step 3: Cross multiply
    1,199,533.78x = 1,799,615.73 × 431,109.04
  4. Step 4: Simplify right side
    1,199,533.78x = 775,830,609,729.20
  5. Step 5: Solve for x
    x = 775,830,609,729.20/1,199,533.78
  6. Step 6: Final answer
    x = 646,776.79

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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.