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Finding the Fourth Proportional to 493,596.19, 681,167.28 and 289,650.54

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Solution

The fourth proportional to 493,596.19, 681,167.28 and 289,650.54 is: 399,720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,596.19 : 681,167.28 = 289,650.54 : x
  2. Step 2: Convert to fraction form
    493,596.19/681,167.28 = 289,650.54/x
  3. Step 3: Cross multiply
    493,596.19x = 681,167.28 × 289,650.54
  4. Step 4: Simplify right side
    493,596.19x = 197,300,470,482.33
  5. Step 5: Solve for x
    x = 197,300,470,482.33/493,596.19
  6. Step 6: Final answer
    x = 399,720.41

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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.