Home / 1,271,991.89-1,755,416.12-720,814.43

Finding the Fourth Proportional to 1,271,991.89, 1,755,416.12 and 720,814.43

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Solution

The fourth proportional to 1,271,991.89, 1,755,416.12 and 720,814.43 is: 994,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,991.89 : 1,755,416.12 = 720,814.43 : x
  2. Step 2: Convert to fraction form
    1,271,991.89/1,755,416.12 = 720,814.43/x
  3. Step 3: Cross multiply
    1,271,991.89x = 1,755,416.12 × 720,814.43
  4. Step 4: Simplify right side
    1,271,991.89x = 1,265,329,269,950.61
  5. Step 5: Solve for x
    x = 1,265,329,269,950.61/1,271,991.89
  6. Step 6: Final answer
    x = 994,762.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.