Home / 856,720.77-1,285,071.90-351,169.05

Finding the Fourth Proportional to 856,720.77, 1,285,071.90 and 351,169.05

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Solution

The fourth proportional to 856,720.77, 1,285,071.90 and 351,169.05 is: 526,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,720.77 : 1,285,071.90 = 351,169.05 : x
  2. Step 2: Convert to fraction form
    856,720.77/1,285,071.90 = 351,169.05/x
  3. Step 3: Cross multiply
    856,720.77x = 1,285,071.90 × 351,169.05
  4. Step 4: Simplify right side
    856,720.77x = 451,277,478,304.70
  5. Step 5: Solve for x
    x = 451,277,478,304.70/856,720.77
  6. Step 6: Final answer
    x = 526,749.78

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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.