Home / 809,845.75-1,117,587.23-470,335.87

Finding the Fourth Proportional to 809,845.75, 1,117,587.23 and 470,335.87

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Solution

The fourth proportional to 809,845.75, 1,117,587.23 and 470,335.87 is: 649,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,845.75 : 1,117,587.23 = 470,335.87 : x
  2. Step 2: Convert to fraction form
    809,845.75/1,117,587.23 = 470,335.87/x
  3. Step 3: Cross multiply
    809,845.75x = 1,117,587.23 × 470,335.87
  4. Step 4: Simplify right side
    809,845.75x = 525,641,362,122.94
  5. Step 5: Solve for x
    x = 525,641,362,122.94/809,845.75
  6. Step 6: Final answer
    x = 649,063.56

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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.