Home / 646,917.65-892,752.55-356,539.75

Finding the Fourth Proportional to 646,917.65, 892,752.55 and 356,539.75

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Solution

The fourth proportional to 646,917.65, 892,752.55 and 356,539.75 is: 492,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,917.65 : 892,752.55 = 356,539.75 : x
  2. Step 2: Convert to fraction form
    646,917.65/892,752.55 = 356,539.75/x
  3. Step 3: Cross multiply
    646,917.65x = 892,752.55 × 356,539.75
  4. Step 4: Simplify right side
    646,917.65x = 318,301,770,988.86
  5. Step 5: Solve for x
    x = 318,301,770,988.86/646,917.65
  6. Step 6: Final answer
    x = 492,028.27

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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.