Home / 407,638.05-562,521.75-226,361.52

Finding the Fourth Proportional to 407,638.05, 562,521.75 and 226,361.52

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Solution

The fourth proportional to 407,638.05, 562,521.75 and 226,361.52 is: 312,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,638.05 : 562,521.75 = 226,361.52 : x
  2. Step 2: Convert to fraction form
    407,638.05/562,521.75 = 226,361.52/x
  3. Step 3: Cross multiply
    407,638.05x = 562,521.75 × 226,361.52
  4. Step 4: Simplify right side
    407,638.05x = 127,333,278,363.06
  5. Step 5: Solve for x
    x = 127,333,278,363.06/407,638.05
  6. Step 6: Final answer
    x = 312,368.48

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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.