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Finding the Fourth Proportional to 404,750.40, 607,125.60 and 247,286.40

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Solution

The fourth proportional to 404,750.40, 607,125.60 and 247,286.40 is: 370,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,750.40 : 607,125.60 = 247,286.40 : x
  2. Step 2: Convert to fraction form
    404,750.40/607,125.60 = 247,286.40/x
  3. Step 3: Cross multiply
    404,750.40x = 607,125.60 × 247,286.40
  4. Step 4: Simplify right side
    404,750.40x = 150,133,903,971.84
  5. Step 5: Solve for x
    x = 150,133,903,971.84/404,750.40
  6. Step 6: Final answer
    x = 370,929.60

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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.