Home / 1,361,381.21-2,042,083.48-388,742.98

Finding the Fourth Proportional to 1,361,381.21, 2,042,083.48 and 388,742.98

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Solution

The fourth proportional to 1,361,381.21, 2,042,083.48 and 388,742.98 is: 583,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,381.21 : 2,042,083.48 = 388,742.98 : x
  2. Step 2: Convert to fraction form
    1,361,381.21/2,042,083.48 = 388,742.98/x
  3. Step 3: Cross multiply
    1,361,381.21x = 2,042,083.48 × 388,742.98
  4. Step 4: Simplify right side
    1,361,381.21x = 793,845,607,213.55
  5. Step 5: Solve for x
    x = 793,845,607,213.55/1,361,381.21
  6. Step 6: Final answer
    x = 583,117.80

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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.