Home / 764,177.26-1,054,575.58-420,045.06

Finding the Fourth Proportional to 764,177.26, 1,054,575.58 and 420,045.06

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Solution

The fourth proportional to 764,177.26, 1,054,575.58 and 420,045.06 is: 579,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,177.26 : 1,054,575.58 = 420,045.06 : x
  2. Step 2: Convert to fraction form
    764,177.26/1,054,575.58 = 420,045.06/x
  3. Step 3: Cross multiply
    764,177.26x = 1,054,575.58 × 420,045.06
  4. Step 4: Simplify right side
    764,177.26x = 442,969,262,775.64
  5. Step 5: Solve for x
    x = 442,969,262,775.64/764,177.26
  6. Step 6: Final answer
    x = 579,668.21

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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.