Home / 1,199,503.38-1,799,570.54-431,078.69

Finding the Fourth Proportional to 1,199,503.38, 1,799,570.54 and 431,078.69

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Solution

The fourth proportional to 1,199,503.38, 1,799,570.54 and 431,078.69 is: 646,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,503.38 : 1,799,570.54 = 431,078.69 : x
  2. Step 2: Convert to fraction form
    1,199,503.38/1,799,570.54 = 431,078.69/x
  3. Step 3: Cross multiply
    1,199,503.38x = 1,799,570.54 × 431,078.69
  4. Step 4: Simplify right side
    1,199,503.38x = 775,756,510,945.79
  5. Step 5: Solve for x
    x = 775,756,510,945.79/1,199,503.38
  6. Step 6: Final answer
    x = 646,731.41

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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.