Home / 770,576.68-1,155,748.38-209,654.92

Finding the Fourth Proportional to 770,576.68, 1,155,748.38 and 209,654.92

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Solution

The fourth proportional to 770,576.68, 1,155,748.38 and 209,654.92 is: 314,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,576.68 : 1,155,748.38 = 209,654.92 : x
  2. Step 2: Convert to fraction form
    770,576.68/1,155,748.38 = 209,654.92/x
  3. Step 3: Cross multiply
    770,576.68x = 1,155,748.38 × 209,654.92
  4. Step 4: Simplify right side
    770,576.68x = 242,308,334,149.03
  5. Step 5: Solve for x
    x = 242,308,334,149.03/770,576.68
  6. Step 6: Final answer
    x = 314,450.65

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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.