Home / 1,293,478.60-1,940,217.90-407,014.60

Finding the Fourth Proportional to 1,293,478.60, 1,940,217.90 and 407,014.60

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Solution

The fourth proportional to 1,293,478.60, 1,940,217.90 and 407,014.60 is: 610,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,478.60 : 1,940,217.90 = 407,014.60 : x
  2. Step 2: Convert to fraction form
    1,293,478.60/1,940,217.90 = 407,014.60/x
  3. Step 3: Cross multiply
    1,293,478.60x = 1,940,217.90 × 407,014.60
  4. Step 4: Simplify right side
    1,293,478.60x = 789,697,012,481.34
  5. Step 5: Solve for x
    x = 789,697,012,481.34/1,293,478.60
  6. Step 6: Final answer
    x = 610,521.90

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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.