Home / 1,307,807.64-1,960,652.70-408,786.48

Finding the Fourth Proportional to 1,307,807.64, 1,960,652.70 and 408,786.48

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Solution

The fourth proportional to 1,307,807.64, 1,960,652.70 and 408,786.48 is: 612,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,807.64 : 1,960,652.70 = 408,786.48 : x
  2. Step 2: Convert to fraction form
    1,307,807.64/1,960,652.70 = 408,786.48/x
  3. Step 3: Cross multiply
    1,307,807.64x = 1,960,652.70 × 408,786.48
  4. Step 4: Simplify right side
    1,307,807.64x = 801,488,315,735.50
  5. Step 5: Solve for x
    x = 801,488,315,735.50/1,307,807.64
  6. Step 6: Final answer
    x = 612,848.78

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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.