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Finding the Fourth Proportional to 504,015.80, 755,148.90 and 326,431.40

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Solution

The fourth proportional to 504,015.80, 755,148.90 and 326,431.40 is: 489,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,015.80 : 755,148.90 = 326,431.40 : x
  2. Step 2: Convert to fraction form
    504,015.80/755,148.90 = 326,431.40/x
  3. Step 3: Cross multiply
    504,015.80x = 755,148.90 × 326,431.40
  4. Step 4: Simplify right side
    504,015.80x = 246,504,312,635.46
  5. Step 5: Solve for x
    x = 246,504,312,635.46/504,015.80
  6. Step 6: Final answer
    x = 489,080.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.