Home / 680,666.09-1,020,999.33-254,235.51

Finding the Fourth Proportional to 680,666.09, 1,020,999.33 and 254,235.51

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Solution

The fourth proportional to 680,666.09, 1,020,999.33 and 254,235.51 is: 381,353.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,666.09 : 1,020,999.33 = 254,235.51 : x
  2. Step 2: Convert to fraction form
    680,666.09/1,020,999.33 = 254,235.51/x
  3. Step 3: Cross multiply
    680,666.09x = 1,020,999.33 × 254,235.51
  4. Step 4: Simplify right side
    680,666.09x = 259,574,285,372.21
  5. Step 5: Solve for x
    x = 259,574,285,372.21/680,666.09
  6. Step 6: Final answer
    x = 381,353.34

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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.