Home / 989,064.40-1,483,839.60-279,083.20

Finding the Fourth Proportional to 989,064.40, 1,483,839.60 and 279,083.20

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Solution

The fourth proportional to 989,064.40, 1,483,839.60 and 279,083.20 is: 418,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,064.40 : 1,483,839.60 = 279,083.20 : x
  2. Step 2: Convert to fraction form
    989,064.40/1,483,839.60 = 279,083.20/x
  3. Step 3: Cross multiply
    989,064.40x = 1,483,839.60 × 279,083.20
  4. Step 4: Simplify right side
    989,064.40x = 414,114,703,854.72
  5. Step 5: Solve for x
    x = 414,114,703,854.72/989,064.40
  6. Step 6: Final answer
    x = 418,693.37

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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.