Home / 925,561.79-1,388,172.43-420,001.20

Finding the Fourth Proportional to 925,561.79, 1,388,172.43 and 420,001.20

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Solution

The fourth proportional to 925,561.79, 1,388,172.43 and 420,001.20 is: 629,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,561.79 : 1,388,172.43 = 420,001.20 : x
  2. Step 2: Convert to fraction form
    925,561.79/1,388,172.43 = 420,001.20/x
  3. Step 3: Cross multiply
    925,561.79x = 1,388,172.43 × 420,001.20
  4. Step 4: Simplify right side
    925,561.79x = 583,034,086,931.92
  5. Step 5: Solve for x
    x = 583,034,086,931.92/925,561.79
  6. Step 6: Final answer
    x = 629,924.54

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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.