Home / 680,743.76-1,021,746.16-344,021.36

Finding the Fourth Proportional to 680,743.76, 1,021,746.16 and 344,021.36

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Solution

The fourth proportional to 680,743.76, 1,021,746.16 and 344,021.36 is: 516,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,743.76 : 1,021,746.16 = 344,021.36 : x
  2. Step 2: Convert to fraction form
    680,743.76/1,021,746.16 = 344,021.36/x
  3. Step 3: Cross multiply
    680,743.76x = 1,021,746.16 × 344,021.36
  4. Step 4: Simplify right side
    680,743.76x = 351,502,503,537.98
  5. Step 5: Solve for x
    x = 351,502,503,537.98/680,743.76
  6. Step 6: Final answer
    x = 516,350.68

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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.