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Finding the Fourth Proportional to 401,007.60, 601,511.40 and 374,435.55

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Solution

The fourth proportional to 401,007.60, 601,511.40 and 374,435.55 is: 561,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,007.60 : 601,511.40 = 374,435.55 : x
  2. Step 2: Convert to fraction form
    401,007.60/601,511.40 = 374,435.55/x
  3. Step 3: Cross multiply
    401,007.60x = 601,511.40 × 374,435.55
  4. Step 4: Simplify right side
    401,007.60x = 225,227,251,890.27
  5. Step 5: Solve for x
    x = 225,227,251,890.27/401,007.60
  6. Step 6: Final answer
    x = 561,653.33

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1.5x scale

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.