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Finding the Fourth Proportional to 953.03, 1,315.09 and 603.71

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Solution

The fourth proportional to 953.03, 1,315.09 and 603.71 is: 833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.03 : 1,315.09 = 603.71 : x
  2. Step 2: Convert to fraction form
    953.03/1,315.09 = 603.71/x
  3. Step 3: Cross multiply
    953.03x = 1,315.09 × 603.71
  4. Step 4: Simplify right side
    953.03x = 793,932.98
  5. Step 5: Solve for x
    x = 793,932.98/953.03
  6. Step 6: Final answer
    x = 833.06

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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.