Home / 1,199,513.18-1,799,584.90-431,088.49

Finding the Fourth Proportional to 1,199,513.18, 1,799,584.90 and 431,088.49

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Solution

The fourth proportional to 1,199,513.18, 1,799,584.90 and 431,088.49 is: 646,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,513.18 : 1,799,584.90 = 431,088.49 : x
  2. Step 2: Convert to fraction form
    1,199,513.18/1,799,584.90 = 431,088.49/x
  3. Step 3: Cross multiply
    1,199,513.18x = 1,799,584.90 × 431,088.49
  4. Step 4: Simplify right side
    1,199,513.18x = 775,780,326,014.43
  5. Step 5: Solve for x
    x = 775,780,326,014.43/1,199,513.18
  6. Step 6: Final answer
    x = 646,745.98

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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.