Home / 764,678.20-1,145,705.10-498,301.60

Finding the Fourth Proportional to 764,678.20, 1,145,705.10 and 498,301.60

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Solution

The fourth proportional to 764,678.20, 1,145,705.10 and 498,301.60 is: 746,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,678.20 : 1,145,705.10 = 498,301.60 : x
  2. Step 2: Convert to fraction form
    764,678.20/1,145,705.10 = 498,301.60/x
  3. Step 3: Cross multiply
    764,678.20x = 1,145,705.10 × 498,301.60
  4. Step 4: Simplify right side
    764,678.20x = 570,906,684,458.16
  5. Step 5: Solve for x
    x = 570,906,684,458.16/764,678.20
  6. Step 6: Final answer
    x = 746,597.31

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Double scale
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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.