Home / 764,903.70-1,147,355.55-344,999.70

Finding the Fourth Proportional to 764,903.70, 1,147,355.55 and 344,999.70

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Solution

The fourth proportional to 764,903.70, 1,147,355.55 and 344,999.70 is: 517,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,903.70 : 1,147,355.55 = 344,999.70 : x
  2. Step 2: Convert to fraction form
    764,903.70/1,147,355.55 = 344,999.70/x
  3. Step 3: Cross multiply
    764,903.70x = 1,147,355.55 × 344,999.70
  4. Step 4: Simplify right side
    764,903.70x = 395,837,320,543.34
  5. Step 5: Solve for x
    x = 395,837,320,543.34/764,903.70
  6. Step 6: Final answer
    x = 517,499.55

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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.