Home / 721,556.79-1,082,015.24-384,534.63

Finding the Fourth Proportional to 721,556.79, 1,082,015.24 and 384,534.63

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Solution

The fourth proportional to 721,556.79, 1,082,015.24 and 384,534.63 is: 576,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,556.79 : 1,082,015.24 = 384,534.63 : x
  2. Step 2: Convert to fraction form
    721,556.79/1,082,015.24 = 384,534.63/x
  3. Step 3: Cross multiply
    721,556.79x = 1,082,015.24 × 384,534.63
  4. Step 4: Simplify right side
    721,556.79x = 416,072,328,045.09
  5. Step 5: Solve for x
    x = 416,072,328,045.09/721,556.79
  6. Step 6: Final answer
    x = 576,631.44

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Double scale
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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.