Home / 679,439.34-1,019,438.46-300,160.08

Finding the Fourth Proportional to 679,439.34, 1,019,438.46 and 300,160.08

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Solution

The fourth proportional to 679,439.34, 1,019,438.46 and 300,160.08 is: 450,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,439.34 : 1,019,438.46 = 300,160.08 : x
  2. Step 2: Convert to fraction form
    679,439.34/1,019,438.46 = 300,160.08/x
  3. Step 3: Cross multiply
    679,439.34x = 1,019,438.46 × 300,160.08
  4. Step 4: Simplify right side
    679,439.34x = 305,994,729,708.68
  5. Step 5: Solve for x
    x = 305,994,729,708.68/679,439.34
  6. Step 6: Final answer
    x = 450,363.57

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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.