Home / 989,107.20-1,481,911.20-849,139.20

Finding the Fourth Proportional to 989,107.20, 1,481,911.20 and 849,139.20

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Solution

The fourth proportional to 989,107.20, 1,481,911.20 and 849,139.20 is: 1,272,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,107.20 : 1,481,911.20 = 849,139.20 : x
  2. Step 2: Convert to fraction form
    989,107.20/1,481,911.20 = 849,139.20/x
  3. Step 3: Cross multiply
    989,107.20x = 1,481,911.20 × 849,139.20
  4. Step 4: Simplify right side
    989,107.20x = 1,258,348,890,839.04
  5. Step 5: Solve for x
    x = 1,258,348,890,839.04/989,107.20
  6. Step 6: Final answer
    x = 1,272,206.78

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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.