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Finding the Fourth Proportional to 940.99, 1,298.59 and 704.52

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Solution

The fourth proportional to 940.99, 1,298.59 and 704.52 is: 972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.99 : 1,298.59 = 704.52 : x
  2. Step 2: Convert to fraction form
    940.99/1,298.59 = 704.52/x
  3. Step 3: Cross multiply
    940.99x = 1,298.59 × 704.52
  4. Step 4: Simplify right side
    940.99x = 914,884.25
  5. Step 5: Solve for x
    x = 914,884.25/940.99
  6. Step 6: Final answer
    x = 972.26

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1.5x scale

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.