Home / 851,769.21-1,276,391.52-345,714.51

Finding the Fourth Proportional to 851,769.21, 1,276,391.52 and 345,714.51

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Solution

The fourth proportional to 851,769.21, 1,276,391.52 and 345,714.51 is: 518,059.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,769.21 : 1,276,391.52 = 345,714.51 : x
  2. Step 2: Convert to fraction form
    851,769.21/1,276,391.52 = 345,714.51/x
  3. Step 3: Cross multiply
    851,769.21x = 1,276,391.52 × 345,714.51
  4. Step 4: Simplify right side
    851,769.21x = 441,267,068,904.96
  5. Step 5: Solve for x
    x = 441,267,068,904.96/851,769.21
  6. Step 6: Final answer
    x = 518,059.43

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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.