Home / 1,315,630.80-1,971,915.30-605,730.60

Finding the Fourth Proportional to 1,315,630.80, 1,971,915.30 and 605,730.60

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Solution

The fourth proportional to 1,315,630.80, 1,971,915.30 and 605,730.60 is: 907,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,630.80 : 1,971,915.30 = 605,730.60 : x
  2. Step 2: Convert to fraction form
    1,315,630.80/1,971,915.30 = 605,730.60/x
  3. Step 3: Cross multiply
    1,315,630.80x = 1,971,915.30 × 605,730.60
  4. Step 4: Simplify right side
    1,315,630.80x = 1,194,449,437,818.18
  5. Step 5: Solve for x
    x = 1,194,449,437,818.18/1,315,630.80
  6. Step 6: Final answer
    x = 907,891.06

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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.