Home / 1,260,649.32-1,890,990.36-419,201.04

Finding the Fourth Proportional to 1,260,649.32, 1,890,990.36 and 419,201.04

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Solution

The fourth proportional to 1,260,649.32, 1,890,990.36 and 419,201.04 is: 628,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,649.32 : 1,890,990.36 = 419,201.04 : x
  2. Step 2: Convert to fraction form
    1,260,649.32/1,890,990.36 = 419,201.04/x
  3. Step 3: Cross multiply
    1,260,649.32x = 1,890,990.36 × 419,201.04
  4. Step 4: Simplify right side
    1,260,649.32x = 792,705,125,541.97
  5. Step 5: Solve for x
    x = 792,705,125,541.97/1,260,649.32
  6. Step 6: Final answer
    x = 628,807.01

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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.