Home / 685,493.51-1,028,450.46-306,733.10

Finding the Fourth Proportional to 685,493.51, 1,028,450.46 and 306,733.10

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Solution

The fourth proportional to 685,493.51, 1,028,450.46 and 306,733.10 is: 460,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,493.51 : 1,028,450.46 = 306,733.10 : x
  2. Step 2: Convert to fraction form
    685,493.51/1,028,450.46 = 306,733.10/x
  3. Step 3: Cross multiply
    685,493.51x = 1,028,450.46 × 306,733.10
  4. Step 4: Simplify right side
    685,493.51x = 315,459,797,792.23
  5. Step 5: Solve for x
    x = 315,459,797,792.23/685,493.51
  6. Step 6: Final answer
    x = 460,193.70

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1.5x scale

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.