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Finding the Fourth Proportional to 526,021.60, 789,226.80 and 210,704.80

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Solution

The fourth proportional to 526,021.60, 789,226.80 and 210,704.80 is: 316,135.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,021.60 : 789,226.80 = 210,704.80 : x
  2. Step 2: Convert to fraction form
    526,021.60/789,226.80 = 210,704.80/x
  3. Step 3: Cross multiply
    526,021.60x = 789,226.80 × 210,704.80
  4. Step 4: Simplify right side
    526,021.60x = 166,293,875,048.64
  5. Step 5: Solve for x
    x = 166,293,875,048.64/526,021.60
  6. Step 6: Final answer
    x = 316,135.07

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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.