Home / 764,475.60-1,145,136.60-447,973.20

Finding the Fourth Proportional to 764,475.60, 1,145,136.60 and 447,973.20

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Solution

The fourth proportional to 764,475.60, 1,145,136.60 and 447,973.20 is: 671,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,475.60 : 1,145,136.60 = 447,973.20 : x
  2. Step 2: Convert to fraction form
    764,475.60/1,145,136.60 = 447,973.20/x
  3. Step 3: Cross multiply
    764,475.60x = 1,145,136.60 × 447,973.20
  4. Step 4: Simplify right side
    764,475.60x = 512,990,507,139.12
  5. Step 5: Solve for x
    x = 512,990,507,139.12/764,475.60
  6. Step 6: Final answer
    x = 671,035.81

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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.