Home / 1,247,436-1,871,270.64-405,761.76

Finding the Fourth Proportional to 1,247,436, 1,871,270.64 and 405,761.76

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Solution

The fourth proportional to 1,247,436, 1,871,270.64 and 405,761.76 is: 608,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,436 : 1,871,270.64 = 405,761.76 : x
  2. Step 2: Convert to fraction form
    1,247,436/1,871,270.64 = 405,761.76/x
  3. Step 3: Cross multiply
    1,247,436x = 1,871,270.64 × 405,761.76
  4. Step 4: Simplify right side
    1,247,436x = 759,290,068,322.73
  5. Step 5: Solve for x
    x = 759,290,068,322.73/1,247,436
  6. Step 6: Final answer
    x = 608,680.58

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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.