Home / 989,097.40-1,483,500.30-279,197.20

Finding the Fourth Proportional to 989,097.40, 1,483,500.30 and 279,197.20

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Solution

The fourth proportional to 989,097.40, 1,483,500.30 and 279,197.20 is: 418,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,097.40 : 1,483,500.30 = 279,197.20 : x
  2. Step 2: Convert to fraction form
    989,097.40/1,483,500.30 = 279,197.20/x
  3. Step 3: Cross multiply
    989,097.40x = 1,483,500.30 × 279,197.20
  4. Step 4: Simplify right side
    989,097.40x = 414,189,129,959.16
  5. Step 5: Solve for x
    x = 414,189,129,959.16/989,097.40
  6. Step 6: Final answer
    x = 418,754.64

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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.