Home / 764,867.60-1,147,301.40-512,925.20

Finding the Fourth Proportional to 764,867.60, 1,147,301.40 and 512,925.20

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Solution

The fourth proportional to 764,867.60, 1,147,301.40 and 512,925.20 is: 769,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,867.60 : 1,147,301.40 = 512,925.20 : x
  2. Step 2: Convert to fraction form
    764,867.60/1,147,301.40 = 512,925.20/x
  3. Step 3: Cross multiply
    764,867.60x = 1,147,301.40 × 512,925.20
  4. Step 4: Simplify right side
    764,867.60x = 588,479,800,055.28
  5. Step 5: Solve for x
    x = 588,479,800,055.28/764,867.60
  6. Step 6: Final answer
    x = 769,387.80

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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.