Home / 1,416,919.40-2,125,388.67-517,991.32

Finding the Fourth Proportional to 1,416,919.40, 2,125,388.67 and 517,991.32

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Solution

The fourth proportional to 1,416,919.40, 2,125,388.67 and 517,991.32 is: 776,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,919.40 : 2,125,388.67 = 517,991.32 : x
  2. Step 2: Convert to fraction form
    1,416,919.40/2,125,388.67 = 517,991.32/x
  3. Step 3: Cross multiply
    1,416,919.40x = 2,125,388.67 × 517,991.32
  4. Step 4: Simplify right side
    1,416,919.40x = 1,100,932,883,400.61
  5. Step 5: Solve for x
    x = 1,100,932,883,400.61/1,416,919.40
  6. Step 6: Final answer
    x = 776,990.48

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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.