Home / 764,074.23-1,145,398.68-258,283.50

Finding the Fourth Proportional to 764,074.23, 1,145,398.68 and 258,283.50

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Solution

The fourth proportional to 764,074.23, 1,145,398.68 and 258,283.50 is: 387,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,074.23 : 1,145,398.68 = 258,283.50 : x
  2. Step 2: Convert to fraction form
    764,074.23/1,145,398.68 = 258,283.50/x
  3. Step 3: Cross multiply
    764,074.23x = 1,145,398.68 × 258,283.50
  4. Step 4: Simplify right side
    764,074.23x = 295,837,579,965.78
  5. Step 5: Solve for x
    x = 295,837,579,965.78/764,074.23
  6. Step 6: Final answer
    x = 387,184.34

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Double scale
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Similar ratio
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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.