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Finding the Fourth Proportional to 833.58, 1,150.08 and 484.20

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Solution

The fourth proportional to 833.58, 1,150.08 and 484.20 is: 668.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.58 : 1,150.08 = 484.20 : x
  2. Step 2: Convert to fraction form
    833.58/1,150.08 = 484.20/x
  3. Step 3: Cross multiply
    833.58x = 1,150.08 × 484.20
  4. Step 4: Simplify right side
    833.58x = 556,868.74
  5. Step 5: Solve for x
    x = 556,868.74/833.58
  6. Step 6: Final answer
    x = 668.04

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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.