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Finding the Fourth Proportional to 401,528.51, 601,109.42 and 351,705.91

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Solution

The fourth proportional to 401,528.51, 601,109.42 and 351,705.91 is: 526,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,528.51 : 601,109.42 = 351,705.91 : x
  2. Step 2: Convert to fraction form
    401,528.51/601,109.42 = 351,705.91/x
  3. Step 3: Cross multiply
    401,528.51x = 601,109.42 × 351,705.91
  4. Step 4: Simplify right side
    401,528.51x = 211,413,735,570.67
  5. Step 5: Solve for x
    x = 211,413,735,570.67/401,528.51
  6. Step 6: Final answer
    x = 526,522.36

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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.