Home / 680,506.31-1,020,128.48-301,224.83

Finding the Fourth Proportional to 680,506.31, 1,020,128.48 and 301,224.83

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Solution

The fourth proportional to 680,506.31, 1,020,128.48 and 301,224.83 is: 451,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,506.31 : 1,020,128.48 = 301,224.83 : x
  2. Step 2: Convert to fraction form
    680,506.31/1,020,128.48 = 301,224.83/x
  3. Step 3: Cross multiply
    680,506.31x = 1,020,128.48 × 301,224.83
  4. Step 4: Simplify right side
    680,506.31x = 307,288,022,488.99
  5. Step 5: Solve for x
    x = 307,288,022,488.99/680,506.31
  6. Step 6: Final answer
    x = 451,557.93

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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.