Home / 764,681.20-1,145,709.60-498,304.60

Finding the Fourth Proportional to 764,681.20, 1,145,709.60 and 498,304.60

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Solution

The fourth proportional to 764,681.20, 1,145,709.60 and 498,304.60 is: 746,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,681.20 : 1,145,709.60 = 498,304.60 : x
  2. Step 2: Convert to fraction form
    764,681.20/1,145,709.60 = 498,304.60/x
  3. Step 3: Cross multiply
    764,681.20x = 1,145,709.60 × 498,304.60
  4. Step 4: Simplify right side
    764,681.20x = 570,912,363,944.16
  5. Step 5: Solve for x
    x = 570,912,363,944.16/764,681.20
  6. Step 6: Final answer
    x = 746,601.80

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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.