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Finding the Fourth Proportional to 401,435.60, 602,153.40 and 336,117.20

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Solution

The fourth proportional to 401,435.60, 602,153.40 and 336,117.20 is: 504,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,435.60 : 602,153.40 = 336,117.20 : x
  2. Step 2: Convert to fraction form
    401,435.60/602,153.40 = 336,117.20/x
  3. Step 3: Cross multiply
    401,435.60x = 602,153.40 × 336,117.20
  4. Step 4: Simplify right side
    401,435.60x = 202,394,114,778.48
  5. Step 5: Solve for x
    x = 202,394,114,778.48/401,435.60
  6. Step 6: Final answer
    x = 504,175.80

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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.