Home / 646,457.10-892,102.20-356,063.04

Finding the Fourth Proportional to 646,457.10, 892,102.20 and 356,063.04

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Solution

The fourth proportional to 646,457.10, 892,102.20 and 356,063.04 is: 491,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,457.10 : 892,102.20 = 356,063.04 : x
  2. Step 2: Convert to fraction form
    646,457.10/892,102.20 = 356,063.04/x
  3. Step 3: Cross multiply
    646,457.10x = 892,102.20 × 356,063.04
  4. Step 4: Simplify right side
    646,457.10x = 317,644,621,322.69
  5. Step 5: Solve for x
    x = 317,644,621,322.69/646,457.10
  6. Step 6: Final answer
    x = 491,362.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.