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Finding the Fourth Proportional to 953.83, 1,314.79 and 603.91

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Solution

The fourth proportional to 953.83, 1,314.79 and 603.91 is: 832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.83 : 1,314.79 = 603.91 : x
  2. Step 2: Convert to fraction form
    953.83/1,314.79 = 603.91/x
  3. Step 3: Cross multiply
    953.83x = 1,314.79 × 603.91
  4. Step 4: Simplify right side
    953.83x = 794,014.83
  5. Step 5: Solve for x
    x = 794,014.83/953.83
  6. Step 6: Final answer
    x = 832.45

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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.