Home / 818,266.23-1,129,207.77-455,759.64

Finding the Fourth Proportional to 818,266.23, 1,129,207.77 and 455,759.64

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Solution

The fourth proportional to 818,266.23, 1,129,207.77 and 455,759.64 is: 628,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,266.23 : 1,129,207.77 = 455,759.64 : x
  2. Step 2: Convert to fraction form
    818,266.23/1,129,207.77 = 455,759.64/x
  3. Step 3: Cross multiply
    818,266.23x = 1,129,207.77 × 455,759.64
  4. Step 4: Simplify right side
    818,266.23x = 514,647,326,740.40
  5. Step 5: Solve for x
    x = 514,647,326,740.40/818,266.23
  6. Step 6: Final answer
    x = 628,948.51

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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.