Home / 685,370.65-1,028,166.13-235,981.03

Finding the Fourth Proportional to 685,370.65, 1,028,166.13 and 235,981.03

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Solution

The fourth proportional to 685,370.65, 1,028,166.13 and 235,981.03 is: 354,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,370.65 : 1,028,166.13 = 235,981.03 : x
  2. Step 2: Convert to fraction form
    685,370.65/1,028,166.13 = 235,981.03/x
  3. Step 3: Cross multiply
    685,370.65x = 1,028,166.13 × 235,981.03
  4. Step 4: Simplify right side
    685,370.65x = 242,627,697,227.68
  5. Step 5: Solve for x
    x = 242,627,697,227.68/685,370.65
  6. Step 6: Final answer
    x = 354,009.47

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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.