Home / 1,398,215.32-2,096,982.17-387,311.02

Finding the Fourth Proportional to 1,398,215.32, 2,096,982.17 and 387,311.02

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Solution

The fourth proportional to 1,398,215.32, 2,096,982.17 and 387,311.02 is: 580,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,215.32 : 2,096,982.17 = 387,311.02 : x
  2. Step 2: Convert to fraction form
    1,398,215.32/2,096,982.17 = 387,311.02/x
  3. Step 3: Cross multiply
    1,398,215.32x = 2,096,982.17 × 387,311.02
  4. Step 4: Simplify right side
    1,398,215.32x = 812,184,297,457.92
  5. Step 5: Solve for x
    x = 812,184,297,457.92/1,398,215.32
  6. Step 6: Final answer
    x = 580,872.12

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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.