Home / 813,700.08-1,220,410.80-214,667.42

Finding the Fourth Proportional to 813,700.08, 1,220,410.80 and 214,667.42

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Solution

The fourth proportional to 813,700.08, 1,220,410.80 and 214,667.42 is: 321,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,700.08 : 1,220,410.80 = 214,667.42 : x
  2. Step 2: Convert to fraction form
    813,700.08/1,220,410.80 = 214,667.42/x
  3. Step 3: Cross multiply
    813,700.08x = 1,220,410.80 × 214,667.42
  4. Step 4: Simplify right side
    813,700.08x = 261,982,431,674.08
  5. Step 5: Solve for x
    x = 261,982,431,674.08/813,700.08
  6. Step 6: Final answer
    x = 321,964.37

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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.