Home / 764,395.20-1,054,879.20-442,123.20

Finding the Fourth Proportional to 764,395.20, 1,054,879.20 and 442,123.20

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Solution

The fourth proportional to 764,395.20, 1,054,879.20 and 442,123.20 is: 610,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,395.20 : 1,054,879.20 = 442,123.20 : x
  2. Step 2: Convert to fraction form
    764,395.20/1,054,879.20 = 442,123.20/x
  3. Step 3: Cross multiply
    764,395.20x = 1,054,879.20 × 442,123.20
  4. Step 4: Simplify right side
    764,395.20x = 466,386,567,517.44
  5. Step 5: Solve for x
    x = 466,386,567,517.44/764,395.20
  6. Step 6: Final answer
    x = 610,138.01

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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.