Home / 1,288,164.36-1,777,536.90-715,142.28

Finding the Fourth Proportional to 1,288,164.36, 1,777,536.90 and 715,142.28

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Solution

The fourth proportional to 1,288,164.36, 1,777,536.90 and 715,142.28 is: 986,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,164.36 : 1,777,536.90 = 715,142.28 : x
  2. Step 2: Convert to fraction form
    1,288,164.36/1,777,536.90 = 715,142.28/x
  3. Step 3: Cross multiply
    1,288,164.36x = 1,777,536.90 × 715,142.28
  4. Step 4: Simplify right side
    1,288,164.36x = 1,271,191,791,450.13
  5. Step 5: Solve for x
    x = 1,271,191,791,450.13/1,288,164.36
  6. Step 6: Final answer
    x = 986,824.22

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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.