Home / 764,386.40-1,146,579.60-659,410.40

Finding the Fourth Proportional to 764,386.40, 1,146,579.60 and 659,410.40

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Solution

The fourth proportional to 764,386.40, 1,146,579.60 and 659,410.40 is: 989,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,386.40 : 1,146,579.60 = 659,410.40 : x
  2. Step 2: Convert to fraction form
    764,386.40/1,146,579.60 = 659,410.40/x
  3. Step 3: Cross multiply
    764,386.40x = 1,146,579.60 × 659,410.40
  4. Step 4: Simplify right side
    764,386.40x = 756,066,512,667.84
  5. Step 5: Solve for x
    x = 756,066,512,667.84/764,386.40
  6. Step 6: Final answer
    x = 989,115.60

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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.