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Finding the Fourth Proportional to 600,091.80, 899,100.90 and 389,621.40

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Solution

The fourth proportional to 600,091.80, 899,100.90 and 389,621.40 is: 583,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,091.80 : 899,100.90 = 389,621.40 : x
  2. Step 2: Convert to fraction form
    600,091.80/899,100.90 = 389,621.40/x
  3. Step 3: Cross multiply
    600,091.80x = 899,100.90 × 389,621.40
  4. Step 4: Simplify right side
    600,091.80x = 350,308,951,399.26
  5. Step 5: Solve for x
    x = 350,308,951,399.26/600,091.80
  6. Step 6: Final answer
    x = 583,758.94

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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.