Home / 493,539.28-681,043.08-289,568.88

Finding the Fourth Proportional to 493,539.28, 681,043.08 and 289,568.88

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Solution

The fourth proportional to 493,539.28, 681,043.08 and 289,568.88 is: 399,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,539.28 : 681,043.08 = 289,568.88 : x
  2. Step 2: Convert to fraction form
    493,539.28/681,043.08 = 289,568.88/x
  3. Step 3: Cross multiply
    493,539.28x = 681,043.08 × 289,568.88
  4. Step 4: Simplify right side
    493,539.28x = 197,208,881,907.35
  5. Step 5: Solve for x
    x = 197,208,881,907.35/493,539.28
  6. Step 6: Final answer
    x = 399,580.92

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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.