Home / 402,496.05-603,764.73-102,979.21

Finding the Fourth Proportional to 402,496.05, 603,764.73 and 102,979.21

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Solution

The fourth proportional to 402,496.05, 603,764.73 and 102,979.21 is: 154,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,496.05 : 603,764.73 = 102,979.21 : x
  2. Step 2: Convert to fraction form
    402,496.05/603,764.73 = 102,979.21/x
  3. Step 3: Cross multiply
    402,496.05x = 603,764.73 × 102,979.21
  4. Step 4: Simplify right side
    402,496.05x = 62,175,214,921.26
  5. Step 5: Solve for x
    x = 62,175,214,921.26/402,496.05
  6. Step 6: Final answer
    x = 154,474.10

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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.