Home / 680,534.56-1,020,953.72-207,256.42

Finding the Fourth Proportional to 680,534.56, 1,020,953.72 and 207,256.42

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Solution

The fourth proportional to 680,534.56, 1,020,953.72 and 207,256.42 is: 310,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,534.56 : 1,020,953.72 = 207,256.42 : x
  2. Step 2: Convert to fraction form
    680,534.56/1,020,953.72 = 207,256.42/x
  3. Step 3: Cross multiply
    680,534.56x = 1,020,953.72 × 207,256.42
  4. Step 4: Simplify right side
    680,534.56x = 211,599,213,621.40
  5. Step 5: Solve for x
    x = 211,599,213,621.40/680,534.56
  6. Step 6: Final answer
    x = 310,930.89

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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.