Home / 680,459.50-1,020,836.76-207,132.49

Finding the Fourth Proportional to 680,459.50, 1,020,836.76 and 207,132.49

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Solution

The fourth proportional to 680,459.50, 1,020,836.76 and 207,132.49 is: 310,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,459.50 : 1,020,836.76 = 207,132.49 : x
  2. Step 2: Convert to fraction form
    680,459.50/1,020,836.76 = 207,132.49/x
  3. Step 3: Cross multiply
    680,459.50x = 1,020,836.76 × 207,132.49
  4. Step 4: Simplify right side
    680,459.50x = 211,448,459,982.33
  5. Step 5: Solve for x
    x = 211,448,459,982.33/680,459.50
  6. Step 6: Final answer
    x = 310,743.64

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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.