Home / 1,145,460.20-1,718,190.30-639,501.80

Finding the Fourth Proportional to 1,145,460.20, 1,718,190.30 and 639,501.80

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Solution

The fourth proportional to 1,145,460.20, 1,718,190.30 and 639,501.80 is: 959,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,460.20 : 1,718,190.30 = 639,501.80 : x
  2. Step 2: Convert to fraction form
    1,145,460.20/1,718,190.30 = 639,501.80/x
  3. Step 3: Cross multiply
    1,145,460.20x = 1,718,190.30 × 639,501.80
  4. Step 4: Simplify right side
    1,145,460.20x = 1,098,785,789,592.54
  5. Step 5: Solve for x
    x = 1,098,785,789,592.54/1,145,460.20
  6. Step 6: Final answer
    x = 959,252.70

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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.