Home / 684,480.72-1,025,865.72-329,399.40

Finding the Fourth Proportional to 684,480.72, 1,025,865.72 and 329,399.40

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Solution

The fourth proportional to 684,480.72, 1,025,865.72 and 329,399.40 is: 493,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,480.72 : 1,025,865.72 = 329,399.40 : x
  2. Step 2: Convert to fraction form
    684,480.72/1,025,865.72 = 329,399.40/x
  3. Step 3: Cross multiply
    684,480.72x = 1,025,865.72 × 329,399.40
  4. Step 4: Simplify right side
    684,480.72x = 337,919,552,648.57
  5. Step 5: Solve for x
    x = 337,919,552,648.57/684,480.72
  6. Step 6: Final answer
    x = 493,687.47

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1.5x scale

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.