Home / 764,551.80-1,147,346.10-497,662.20

Finding the Fourth Proportional to 764,551.80, 1,147,346.10 and 497,662.20

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Solution

The fourth proportional to 764,551.80, 1,147,346.10 and 497,662.20 is: 746,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,551.80 : 1,147,346.10 = 497,662.20 : x
  2. Step 2: Convert to fraction form
    764,551.80/1,147,346.10 = 497,662.20/x
  3. Step 3: Cross multiply
    764,551.80x = 1,147,346.10 × 497,662.20
  4. Step 4: Simplify right side
    764,551.80x = 570,990,784,287.42
  5. Step 5: Solve for x
    x = 570,990,784,287.42/764,551.80
  6. Step 6: Final answer
    x = 746,830.74

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Double scale
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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.