Home / 858,435.28-1,287,653.08-325,956.56

Finding the Fourth Proportional to 858,435.28, 1,287,653.08 and 325,956.56

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Solution

The fourth proportional to 858,435.28, 1,287,653.08 and 325,956.56 is: 488,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,435.28 : 1,287,653.08 = 325,956.56 : x
  2. Step 2: Convert to fraction form
    858,435.28/1,287,653.08 = 325,956.56/x
  3. Step 3: Cross multiply
    858,435.28x = 1,287,653.08 × 325,956.56
  4. Step 4: Simplify right side
    858,435.28x = 419,718,968,430.21
  5. Step 5: Solve for x
    x = 419,718,968,430.21/858,435.28
  6. Step 6: Final answer
    x = 488,934.90

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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.