Home / 1,247,429.67-1,871,128.10-300,792.20

Finding the Fourth Proportional to 1,247,429.67, 1,871,128.10 and 300,792.20

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Solution

The fourth proportional to 1,247,429.67, 1,871,128.10 and 300,792.20 is: 451,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,429.67 : 1,871,128.10 = 300,792.20 : x
  2. Step 2: Convert to fraction form
    1,247,429.67/1,871,128.10 = 300,792.20/x
  3. Step 3: Cross multiply
    1,247,429.67x = 1,871,128.10 × 300,792.20
  4. Step 4: Simplify right side
    1,247,429.67x = 562,820,726,821.22
  5. Step 5: Solve for x
    x = 562,820,726,821.22/1,247,429.67
  6. Step 6: Final answer
    x = 451,184.34

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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.