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Finding the Fourth Proportional to 444,510.40, 666,765.60 and 326,412.40

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Solution

The fourth proportional to 444,510.40, 666,765.60 and 326,412.40 is: 489,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,510.40 : 666,765.60 = 326,412.40 : x
  2. Step 2: Convert to fraction form
    444,510.40/666,765.60 = 326,412.40/x
  3. Step 3: Cross multiply
    444,510.40x = 666,765.60 × 326,412.40
  4. Step 4: Simplify right side
    444,510.40x = 217,640,559,733.44
  5. Step 5: Solve for x
    x = 217,640,559,733.44/444,510.40
  6. Step 6: Final answer
    x = 489,618.60

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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.