Home / 764,679.20-1,145,706.60-498,302.60

Finding the Fourth Proportional to 764,679.20, 1,145,706.60 and 498,302.60

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Solution

The fourth proportional to 764,679.20, 1,145,706.60 and 498,302.60 is: 746,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,679.20 : 1,145,706.60 = 498,302.60 : x
  2. Step 2: Convert to fraction form
    764,679.20/1,145,706.60 = 498,302.60/x
  3. Step 3: Cross multiply
    764,679.20x = 1,145,706.60 × 498,302.60
  4. Step 4: Simplify right side
    764,679.20x = 570,908,577,617.16
  5. Step 5: Solve for x
    x = 570,908,577,617.16/764,679.20
  6. Step 6: Final answer
    x = 746,598.81

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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.