Home / 765,121.41-1,147,674.57-285,332.58

Finding the Fourth Proportional to 765,121.41, 1,147,674.57 and 285,332.58

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Solution

The fourth proportional to 765,121.41, 1,147,674.57 and 285,332.58 is: 427,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,121.41 : 1,147,674.57 = 285,332.58 : x
  2. Step 2: Convert to fraction form
    765,121.41/1,147,674.57 = 285,332.58/x
  3. Step 3: Cross multiply
    765,121.41x = 1,147,674.57 × 285,332.58
  4. Step 4: Simplify right side
    765,121.41x = 327,468,946,058.49
  5. Step 5: Solve for x
    x = 327,468,946,058.49/765,121.41
  6. Step 6: Final answer
    x = 427,996.06

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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.