Home / 723,922.50-999,013.86-422,174.82

Finding the Fourth Proportional to 723,922.50, 999,013.86 and 422,174.82

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Solution

The fourth proportional to 723,922.50, 999,013.86 and 422,174.82 is: 582,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,922.50 : 999,013.86 = 422,174.82 : x
  2. Step 2: Convert to fraction form
    723,922.50/999,013.86 = 422,174.82/x
  3. Step 3: Cross multiply
    723,922.50x = 999,013.86 × 422,174.82
  4. Step 4: Simplify right side
    723,922.50x = 421,758,496,523.01
  5. Step 5: Solve for x
    x = 421,758,496,523.01/723,922.50
  6. Step 6: Final answer
    x = 582,601.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.