Home / 1,247,398.44-1,871,328.45-394,684.74

Finding the Fourth Proportional to 1,247,398.44, 1,871,328.45 and 394,684.74

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Solution

The fourth proportional to 1,247,398.44, 1,871,328.45 and 394,684.74 is: 592,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,398.44 : 1,871,328.45 = 394,684.74 : x
  2. Step 2: Convert to fraction form
    1,247,398.44/1,871,328.45 = 394,684.74/x
  3. Step 3: Cross multiply
    1,247,398.44x = 1,871,328.45 × 394,684.74
  4. Step 4: Simplify right side
    1,247,398.44x = 738,584,782,742.85
  5. Step 5: Solve for x
    x = 738,584,782,742.85/1,247,398.44
  6. Step 6: Final answer
    x = 592,100.13

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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.