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Finding the Fourth Proportional to 397,939, 549,622.38 and 263,569.72

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Solution

The fourth proportional to 397,939, 549,622.38 and 263,569.72 is: 364,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,939 : 549,622.38 = 263,569.72 : x
  2. Step 2: Convert to fraction form
    397,939/549,622.38 = 263,569.72/x
  3. Step 3: Cross multiply
    397,939x = 549,622.38 × 263,569.72
  4. Step 4: Simplify right side
    397,939x = 144,863,816,802.33
  5. Step 5: Solve for x
    x = 144,863,816,802.33/397,939
  6. Step 6: Final answer
    x = 364,035.23

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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.