Home / 818,548.75-1,129,447.32-455,963.59

Finding the Fourth Proportional to 818,548.75, 1,129,447.32 and 455,963.59

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Solution

The fourth proportional to 818,548.75, 1,129,447.32 and 455,963.59 is: 629,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,548.75 : 1,129,447.32 = 455,963.59 : x
  2. Step 2: Convert to fraction form
    818,548.75/1,129,447.32 = 455,963.59/x
  3. Step 3: Cross multiply
    818,548.75x = 1,129,447.32 × 455,963.59
  4. Step 4: Simplify right side
    818,548.75x = 514,986,849,095.84
  5. Step 5: Solve for x
    x = 514,986,849,095.84/818,548.75
  6. Step 6: Final answer
    x = 629,146.22

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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.