Home / 764,433.20-1,146,649.80-344,529.20

Finding the Fourth Proportional to 764,433.20, 1,146,649.80 and 344,529.20

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Solution

The fourth proportional to 764,433.20, 1,146,649.80 and 344,529.20 is: 516,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,433.20 : 1,146,649.80 = 344,529.20 : x
  2. Step 2: Convert to fraction form
    764,433.20/1,146,649.80 = 344,529.20/x
  3. Step 3: Cross multiply
    764,433.20x = 1,146,649.80 × 344,529.20
  4. Step 4: Simplify right side
    764,433.20x = 395,054,338,274.16
  5. Step 5: Solve for x
    x = 395,054,338,274.16/764,433.20
  6. Step 6: Final answer
    x = 516,793.80

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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.