Home / 1,760,960.40-2,642,477.40-639,142.80

Finding the Fourth Proportional to 1,760,960.40, 2,642,477.40 and 639,142.80

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Solution

The fourth proportional to 1,760,960.40, 2,642,477.40 and 639,142.80 is: 959,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,960.40 : 2,642,477.40 = 639,142.80 : x
  2. Step 2: Convert to fraction form
    1,760,960.40/2,642,477.40 = 639,142.80/x
  3. Step 3: Cross multiply
    1,760,960.40x = 2,642,477.40 × 639,142.80
  4. Step 4: Simplify right side
    1,760,960.40x = 1,688,920,404,372.72
  5. Step 5: Solve for x
    x = 1,688,920,404,372.72/1,760,960.40
  6. Step 6: Final answer
    x = 959,090.51

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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.