Home / 764,714.76-1,055,333.46-420,577.29

Finding the Fourth Proportional to 764,714.76, 1,055,333.46 and 420,577.29

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Solution

The fourth proportional to 764,714.76, 1,055,333.46 and 420,577.29 is: 580,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,714.76 : 1,055,333.46 = 420,577.29 : x
  2. Step 2: Convert to fraction form
    764,714.76/1,055,333.46 = 420,577.29/x
  3. Step 3: Cross multiply
    764,714.76x = 1,055,333.46 × 420,577.29
  4. Step 4: Simplify right side
    764,714.76x = 443,849,286,653.12
  5. Step 5: Solve for x
    x = 443,849,286,653.12/764,714.76
  6. Step 6: Final answer
    x = 580,411.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.