Home / 1,012,827.52-1,520,311.78-989,956.28

Finding the Fourth Proportional to 1,012,827.52, 1,520,311.78 and 989,956.28

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Solution

The fourth proportional to 1,012,827.52, 1,520,311.78 and 989,956.28 is: 1,485,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,827.52 : 1,520,311.78 = 989,956.28 : x
  2. Step 2: Convert to fraction form
    1,012,827.52/1,520,311.78 = 989,956.28/x
  3. Step 3: Cross multiply
    1,012,827.52x = 1,520,311.78 × 989,956.28
  4. Step 4: Simplify right side
    1,012,827.52x = 1,505,042,199,207.20
  5. Step 5: Solve for x
    x = 1,505,042,199,207.20/1,012,827.52
  6. Step 6: Final answer
    x = 1,485,980.75

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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.