Home / 818,543.22-1,129,551.84-455,963.52

Finding the Fourth Proportional to 818,543.22, 1,129,551.84 and 455,963.52

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Solution

The fourth proportional to 818,543.22, 1,129,551.84 and 455,963.52 is: 629,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,543.22 : 1,129,551.84 = 455,963.52 : x
  2. Step 2: Convert to fraction form
    818,543.22/1,129,551.84 = 455,963.52/x
  3. Step 3: Cross multiply
    818,543.22x = 1,129,551.84 × 455,963.52
  4. Step 4: Simplify right side
    818,543.22x = 515,034,432,988.88
  5. Step 5: Solve for x
    x = 515,034,432,988.88/818,543.22
  6. Step 6: Final answer
    x = 629,208.60

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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.