Home / 764,599.58-1,055,174.55-420,461.90

Finding the Fourth Proportional to 764,599.58, 1,055,174.55 and 420,461.90

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Solution

The fourth proportional to 764,599.58, 1,055,174.55 and 420,461.90 is: 580,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,599.58 : 1,055,174.55 = 420,461.90 : x
  2. Step 2: Convert to fraction form
    764,599.58/1,055,174.55 = 420,461.90/x
  3. Step 3: Cross multiply
    764,599.58x = 1,055,174.55 × 420,461.90
  4. Step 4: Simplify right side
    764,599.58x = 443,660,696,124.65
  5. Step 5: Solve for x
    x = 443,660,696,124.65/764,599.58
  6. Step 6: Final answer
    x = 580,252.34

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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.