Home / 1,640,659.40-2,460,989.10-1,007,520.20

Finding the Fourth Proportional to 1,640,659.40, 2,460,989.10 and 1,007,520.20

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Solution

The fourth proportional to 1,640,659.40, 2,460,989.10 and 1,007,520.20 is: 1,511,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,659.40 : 2,460,989.10 = 1,007,520.20 : x
  2. Step 2: Convert to fraction form
    1,640,659.40/2,460,989.10 = 1,007,520.20/x
  3. Step 3: Cross multiply
    1,640,659.40x = 2,460,989.10 × 1,007,520.20
  4. Step 4: Simplify right side
    1,640,659.40x = 2,479,496,230,229.82
  5. Step 5: Solve for x
    x = 2,479,496,230,229.82/1,640,659.40
  6. Step 6: Final answer
    x = 1,511,280.30

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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.