Home / 989,113.20-1,481,920.20-849,145.20

Finding the Fourth Proportional to 989,113.20, 1,481,920.20 and 849,145.20

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Solution

The fourth proportional to 989,113.20, 1,481,920.20 and 849,145.20 is: 1,272,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,113.20 : 1,481,920.20 = 849,145.20 : x
  2. Step 2: Convert to fraction form
    989,113.20/1,481,920.20 = 849,145.20/x
  3. Step 3: Cross multiply
    989,113.20x = 1,481,920.20 × 849,145.20
  4. Step 4: Simplify right side
    989,113.20x = 1,258,365,424,613.04
  5. Step 5: Solve for x
    x = 1,258,365,424,613.04/989,113.20
  6. Step 6: Final answer
    x = 1,272,215.78

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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.