Home / 685,497.15-1,028,537.33-330,328.35

Finding the Fourth Proportional to 685,497.15, 1,028,537.33 and 330,328.35

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Solution

The fourth proportional to 685,497.15, 1,028,537.33 and 330,328.35 is: 495,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,497.15 : 1,028,537.33 = 330,328.35 : x
  2. Step 2: Convert to fraction form
    685,497.15/1,028,537.33 = 330,328.35/x
  3. Step 3: Cross multiply
    685,497.15x = 1,028,537.33 × 330,328.35
  4. Step 4: Simplify right side
    685,497.15x = 339,755,037,480.66
  5. Step 5: Solve for x
    x = 339,755,037,480.66/685,497.15
  6. Step 6: Final answer
    x = 495,633.04

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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.