Home / 1,288,172.96-1,777,734.26-715,213.24

Finding the Fourth Proportional to 1,288,172.96, 1,777,734.26 and 715,213.24

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Solution

The fourth proportional to 1,288,172.96, 1,777,734.26 and 715,213.24 is: 987,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,172.96 : 1,777,734.26 = 715,213.24 : x
  2. Step 2: Convert to fraction form
    1,288,172.96/1,777,734.26 = 715,213.24/x
  3. Step 3: Cross multiply
    1,288,172.96x = 1,777,734.26 × 715,213.24
  4. Step 4: Simplify right side
    1,288,172.96x = 1,271,459,079,953.60
  5. Step 5: Solve for x
    x = 1,271,459,079,953.60/1,288,172.96
  6. Step 6: Final answer
    x = 987,025.13

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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.