Home / 925,660.20-1,389,008.70-393,090.60

Finding the Fourth Proportional to 925,660.20, 1,389,008.70 and 393,090.60

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Solution

The fourth proportional to 925,660.20, 1,389,008.70 and 393,090.60 is: 589,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,660.20 : 1,389,008.70 = 393,090.60 : x
  2. Step 2: Convert to fraction form
    925,660.20/1,389,008.70 = 393,090.60/x
  3. Step 3: Cross multiply
    925,660.20x = 1,389,008.70 × 393,090.60
  4. Step 4: Simplify right side
    925,660.20x = 546,006,263,288.22
  5. Step 5: Solve for x
    x = 546,006,263,288.22/925,660.20
  6. Step 6: Final answer
    x = 589,856.04

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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.