Home / 1,336,923.92-2,005,188.60-390,040.40

Finding the Fourth Proportional to 1,336,923.92, 2,005,188.60 and 390,040.40

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Solution

The fourth proportional to 1,336,923.92, 2,005,188.60 and 390,040.40 is: 585,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,923.92 : 2,005,188.60 = 390,040.40 : x
  2. Step 2: Convert to fraction form
    1,336,923.92/2,005,188.60 = 390,040.40/x
  3. Step 3: Cross multiply
    1,336,923.92x = 2,005,188.60 × 390,040.40
  4. Step 4: Simplify right side
    1,336,923.92x = 782,104,563,619.44
  5. Step 5: Solve for x
    x = 782,104,563,619.44/1,336,923.92
  6. Step 6: Final answer
    x = 585,003.04

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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.