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Finding the Fourth Proportional to 833.48, 1,150.30 and 623.29

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Solution

The fourth proportional to 833.48, 1,150.30 and 623.29 is: 860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.48 : 1,150.30 = 623.29 : x
  2. Step 2: Convert to fraction form
    833.48/1,150.30 = 623.29/x
  3. Step 3: Cross multiply
    833.48x = 1,150.30 × 623.29
  4. Step 4: Simplify right side
    833.48x = 716,966.05
  5. Step 5: Solve for x
    x = 716,966.05/833.48
  6. Step 6: Final answer
    x = 860.21

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Double scale
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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.