Home / 454,948.62-682,398.30-139,406.46

Finding the Fourth Proportional to 454,948.62, 682,398.30 and 139,406.46

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Solution

The fourth proportional to 454,948.62, 682,398.30 and 139,406.46 is: 209,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,948.62 : 682,398.30 = 139,406.46 : x
  2. Step 2: Convert to fraction form
    454,948.62/682,398.30 = 139,406.46/x
  3. Step 3: Cross multiply
    454,948.62x = 682,398.30 × 139,406.46
  4. Step 4: Simplify right side
    454,948.62x = 95,130,731,313.02
  5. Step 5: Solve for x
    x = 95,130,731,313.02/454,948.62
  6. Step 6: Final answer
    x = 209,102.14

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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.