Home / 765,997.48-1,149,178.47-385,984.36

Finding the Fourth Proportional to 765,997.48, 1,149,178.47 and 385,984.36

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Solution

The fourth proportional to 765,997.48, 1,149,178.47 and 385,984.36 is: 579,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,997.48 : 1,149,178.47 = 385,984.36 : x
  2. Step 2: Convert to fraction form
    765,997.48/1,149,178.47 = 385,984.36/x
  3. Step 3: Cross multiply
    765,997.48x = 1,149,178.47 × 385,984.36
  4. Step 4: Simplify right side
    765,997.48x = 443,564,916,268.73
  5. Step 5: Solve for x
    x = 443,564,916,268.73/765,997.48
  6. Step 6: Final answer
    x = 579,068.38

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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.