Home / 680,458.50-1,020,835.26-207,131.49

Finding the Fourth Proportional to 680,458.50, 1,020,835.26 and 207,131.49

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Solution

The fourth proportional to 680,458.50, 1,020,835.26 and 207,131.49 is: 310,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,458.50 : 1,020,835.26 = 207,131.49 : x
  2. Step 2: Convert to fraction form
    680,458.50/1,020,835.26 = 207,131.49/x
  3. Step 3: Cross multiply
    680,458.50x = 1,020,835.26 × 207,131.49
  4. Step 4: Simplify right side
    680,458.50x = 211,447,128,448.34
  5. Step 5: Solve for x
    x = 211,447,128,448.34/680,458.50
  6. Step 6: Final answer
    x = 310,742.14

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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.