Home / 764,965.20-1,147,447.80-366,384.45

Finding the Fourth Proportional to 764,965.20, 1,147,447.80 and 366,384.45

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Solution

The fourth proportional to 764,965.20, 1,147,447.80 and 366,384.45 is: 549,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,965.20 : 1,147,447.80 = 366,384.45 : x
  2. Step 2: Convert to fraction form
    764,965.20/1,147,447.80 = 366,384.45/x
  3. Step 3: Cross multiply
    764,965.20x = 1,147,447.80 × 366,384.45
  4. Step 4: Simplify right side
    764,965.20x = 420,407,031,106.71
  5. Step 5: Solve for x
    x = 420,407,031,106.71/764,965.20
  6. Step 6: Final answer
    x = 549,576.68

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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.