Home / 765,669.78-1,148,416.92-204,748.02

Finding the Fourth Proportional to 765,669.78, 1,148,416.92 and 204,748.02

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Solution

The fourth proportional to 765,669.78, 1,148,416.92 and 204,748.02 is: 307,098.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,669.78 : 1,148,416.92 = 204,748.02 : x
  2. Step 2: Convert to fraction form
    765,669.78/1,148,416.92 = 204,748.02/x
  3. Step 3: Cross multiply
    765,669.78x = 1,148,416.92 × 204,748.02
  4. Step 4: Simplify right side
    765,669.78x = 235,136,090,504.50
  5. Step 5: Solve for x
    x = 235,136,090,504.50/765,669.78
  6. Step 6: Final answer
    x = 307,098.56

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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.