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Finding the Fourth Proportional to 445,019.40, 624,601.80 and 445,019.40

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Solution

The fourth proportional to 445,019.40, 624,601.80 and 445,019.40 is: 624,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,019.40 : 624,601.80 = 445,019.40 : x
  2. Step 2: Convert to fraction form
    445,019.40/624,601.80 = 445,019.40/x
  3. Step 3: Cross multiply
    445,019.40x = 624,601.80 × 445,019.40
  4. Step 4: Simplify right side
    445,019.40x = 277,959,918,274.92
  5. Step 5: Solve for x
    x = 277,959,918,274.92/445,019.40
  6. Step 6: Final answer
    x = 624,601.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.