Home / 685,526.85-1,028,500.34-306,766.35

Finding the Fourth Proportional to 685,526.85, 1,028,500.34 and 306,766.35

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Solution

The fourth proportional to 685,526.85, 1,028,500.34 and 306,766.35 is: 460,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,526.85 : 1,028,500.34 = 306,766.35 : x
  2. Step 2: Convert to fraction form
    685,526.85/1,028,500.34 = 306,766.35/x
  3. Step 3: Cross multiply
    685,526.85x = 1,028,500.34 × 306,766.35
  4. Step 4: Simplify right side
    685,526.85x = 315,509,293,741.73
  5. Step 5: Solve for x
    x = 315,509,293,741.73/685,526.85
  6. Step 6: Final answer
    x = 460,243.52

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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.