Home / 1,289,885.31-1,934,868.67-330,346.96

Finding the Fourth Proportional to 1,289,885.31, 1,934,868.67 and 330,346.96

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Solution

The fourth proportional to 1,289,885.31, 1,934,868.67 and 330,346.96 is: 495,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,885.31 : 1,934,868.67 = 330,346.96 : x
  2. Step 2: Convert to fraction form
    1,289,885.31/1,934,868.67 = 330,346.96/x
  3. Step 3: Cross multiply
    1,289,885.31x = 1,934,868.67 × 330,346.96
  4. Step 4: Simplify right side
    1,289,885.31x = 639,177,977,470.70
  5. Step 5: Solve for x
    x = 639,177,977,470.70/1,289,885.31
  6. Step 6: Final answer
    x = 495,530.86

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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.