Home / 679,972.40-1,019,958.60-409,367.60

Finding the Fourth Proportional to 679,972.40, 1,019,958.60 and 409,367.60

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Solution

The fourth proportional to 679,972.40, 1,019,958.60 and 409,367.60 is: 614,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,972.40 : 1,019,958.60 = 409,367.60 : x
  2. Step 2: Convert to fraction form
    679,972.40/1,019,958.60 = 409,367.60/x
  3. Step 3: Cross multiply
    679,972.40x = 1,019,958.60 × 409,367.60
  4. Step 4: Simplify right side
    679,972.40x = 417,538,004,181.36
  5. Step 5: Solve for x
    x = 417,538,004,181.36/679,972.40
  6. Step 6: Final answer
    x = 614,051.40

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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.