Home / 721,880.82-1,082,447.43-384,830.94

Finding the Fourth Proportional to 721,880.82, 1,082,447.43 and 384,830.94

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Solution

The fourth proportional to 721,880.82, 1,082,447.43 and 384,830.94 is: 577,047.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,880.82 : 1,082,447.43 = 384,830.94 : x
  2. Step 2: Convert to fraction form
    721,880.82/1,082,447.43 = 384,830.94/x
  3. Step 3: Cross multiply
    721,880.82x = 1,082,447.43 × 384,830.94
  4. Step 4: Simplify right side
    721,880.82x = 416,559,261,987.48
  5. Step 5: Solve for x
    x = 416,559,261,987.48/721,880.82
  6. Step 6: Final answer
    x = 577,047.14

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1.5x scale

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.