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Finding the Fourth Proportional to 555.08, 835.88 and 483.80

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Solution

The fourth proportional to 555.08, 835.88 and 483.80 is: 728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.08 : 835.88 = 483.80 : x
  2. Step 2: Convert to fraction form
    555.08/835.88 = 483.80/x
  3. Step 3: Cross multiply
    555.08x = 835.88 × 483.80
  4. Step 4: Simplify right side
    555.08x = 404,398.74
  5. Step 5: Solve for x
    x = 404,398.74/555.08
  6. Step 6: Final answer
    x = 728.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.