Home / 764,230.60-1,146,345.90-409,936.60

Finding the Fourth Proportional to 764,230.60, 1,146,345.90 and 409,936.60

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Solution

The fourth proportional to 764,230.60, 1,146,345.90 and 409,936.60 is: 614,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,230.60 : 1,146,345.90 = 409,936.60 : x
  2. Step 2: Convert to fraction form
    764,230.60/1,146,345.90 = 409,936.60/x
  3. Step 3: Cross multiply
    764,230.60x = 1,146,345.90 × 409,936.60
  4. Step 4: Simplify right side
    764,230.60x = 469,929,140,669.94
  5. Step 5: Solve for x
    x = 469,929,140,669.94/764,230.60
  6. Step 6: Final answer
    x = 614,904.90

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Double scale
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Similar ratio
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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.