Home / 1,296,952.20-1,945,719.90-398,435.40

Finding the Fourth Proportional to 1,296,952.20, 1,945,719.90 and 398,435.40

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Solution

The fourth proportional to 1,296,952.20, 1,945,719.90 and 398,435.40 is: 597,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,952.20 : 1,945,719.90 = 398,435.40 : x
  2. Step 2: Convert to fraction form
    1,296,952.20/1,945,719.90 = 398,435.40/x
  3. Step 3: Cross multiply
    1,296,952.20x = 1,945,719.90 × 398,435.40
  4. Step 4: Simplify right side
    1,296,952.20x = 775,243,686,644.46
  5. Step 5: Solve for x
    x = 775,243,686,644.46/1,296,952.20
  6. Step 6: Final answer
    x = 597,742.68

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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.