Home / 851,245.80-1,276,868.70-496,660.20

Finding the Fourth Proportional to 851,245.80, 1,276,868.70 and 496,660.20

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Solution

The fourth proportional to 851,245.80, 1,276,868.70 and 496,660.20 is: 744,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,245.80 : 1,276,868.70 = 496,660.20 : x
  2. Step 2: Convert to fraction form
    851,245.80/1,276,868.70 = 496,660.20/x
  3. Step 3: Cross multiply
    851,245.80x = 1,276,868.70 × 496,660.20
  4. Step 4: Simplify right side
    851,245.80x = 634,169,863,915.74
  5. Step 5: Solve for x
    x = 634,169,863,915.74/851,245.80
  6. Step 6: Final answer
    x = 744,990.30

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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.