Home / 1,331,878.44-1,998,116.82-385,322.70

Finding the Fourth Proportional to 1,331,878.44, 1,998,116.82 and 385,322.70

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Solution

The fourth proportional to 1,331,878.44, 1,998,116.82 and 385,322.70 is: 578,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,878.44 : 1,998,116.82 = 385,322.70 : x
  2. Step 2: Convert to fraction form
    1,331,878.44/1,998,116.82 = 385,322.70/x
  3. Step 3: Cross multiply
    1,331,878.44x = 1,998,116.82 × 385,322.70
  4. Step 4: Simplify right side
    1,331,878.44x = 769,919,767,997.81
  5. Step 5: Solve for x
    x = 769,919,767,997.81/1,331,878.44
  6. Step 6: Final answer
    x = 578,070.60

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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.