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Finding the Fourth Proportional to 550,452.48, 759,633.12 and 308,788.80

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Solution

The fourth proportional to 550,452.48, 759,633.12 and 308,788.80 is: 426,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,452.48 : 759,633.12 = 308,788.80 : x
  2. Step 2: Convert to fraction form
    550,452.48/759,633.12 = 308,788.80/x
  3. Step 3: Cross multiply
    550,452.48x = 759,633.12 × 308,788.80
  4. Step 4: Simplify right side
    550,452.48x = 234,566,199,565.06
  5. Step 5: Solve for x
    x = 234,566,199,565.06/550,452.48
  6. Step 6: Final answer
    x = 426,133.42

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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.