Home / 1,260,578-1,890,883.47-419,129.75

Finding the Fourth Proportional to 1,260,578, 1,890,883.47 and 419,129.75

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Solution

The fourth proportional to 1,260,578, 1,890,883.47 and 419,129.75 is: 628,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,578 : 1,890,883.47 = 419,129.75 : x
  2. Step 2: Convert to fraction form
    1,260,578/1,890,883.47 = 419,129.75/x
  3. Step 3: Cross multiply
    1,260,578x = 1,890,883.47 × 419,129.75
  4. Step 4: Simplify right side
    1,260,578x = 792,525,516,060.23
  5. Step 5: Solve for x
    x = 792,525,516,060.23/1,260,578
  6. Step 6: Final answer
    x = 628,700.10

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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.