Home / 851,256.80-1,276,885.20-838,815.20

Finding the Fourth Proportional to 851,256.80, 1,276,885.20 and 838,815.20

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Solution

The fourth proportional to 851,256.80, 1,276,885.20 and 838,815.20 is: 1,258,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,256.80 : 1,276,885.20 = 838,815.20 : x
  2. Step 2: Convert to fraction form
    851,256.80/1,276,885.20 = 838,815.20/x
  3. Step 3: Cross multiply
    851,256.80x = 1,276,885.20 × 838,815.20
  4. Step 4: Simplify right side
    851,256.80x = 1,071,070,714,415.04
  5. Step 5: Solve for x
    x = 1,071,070,714,415.04/851,256.80
  6. Step 6: Final answer
    x = 1,258,222.80

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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.