Home / 680,218.48-1,020,722.01-343,285.48

Finding the Fourth Proportional to 680,218.48, 1,020,722.01 and 343,285.48

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Solution

The fourth proportional to 680,218.48, 1,020,722.01 and 343,285.48 is: 515,127.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,218.48 : 1,020,722.01 = 343,285.48 : x
  2. Step 2: Convert to fraction form
    680,218.48/1,020,722.01 = 343,285.48/x
  3. Step 3: Cross multiply
    680,218.48x = 1,020,722.01 × 343,285.48
  4. Step 4: Simplify right side
    680,218.48x = 350,399,045,149.42
  5. Step 5: Solve for x
    x = 350,399,045,149.42/680,218.48
  6. Step 6: Final answer
    x = 515,127.21

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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.