Home / 648,200.40-971,782.20-273,915.60

Finding the Fourth Proportional to 648,200.40, 971,782.20 and 273,915.60

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Solution

The fourth proportional to 648,200.40, 971,782.20 and 273,915.60 is: 410,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,200.40 : 971,782.20 = 273,915.60 : x
  2. Step 2: Convert to fraction form
    648,200.40/971,782.20 = 273,915.60/x
  3. Step 3: Cross multiply
    648,200.40x = 971,782.20 × 273,915.60
  4. Step 4: Simplify right side
    648,200.40x = 266,186,304,382.32
  5. Step 5: Solve for x
    x = 266,186,304,382.32/648,200.40
  6. Step 6: Final answer
    x = 410,654.34

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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.