Home / 1,260,621.42-1,890,948.51-419,173.14

Finding the Fourth Proportional to 1,260,621.42, 1,890,948.51 and 419,173.14

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Solution

The fourth proportional to 1,260,621.42, 1,890,948.51 and 419,173.14 is: 628,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,621.42 : 1,890,948.51 = 419,173.14 : x
  2. Step 2: Convert to fraction form
    1,260,621.42/1,890,948.51 = 419,173.14/x
  3. Step 3: Cross multiply
    1,260,621.42x = 1,890,948.51 × 419,173.14
  4. Step 4: Simplify right side
    1,260,621.42x = 792,634,824,515.02
  5. Step 5: Solve for x
    x = 792,634,824,515.02/1,260,621.42
  6. Step 6: Final answer
    x = 628,765.16

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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.