Home / 1,112,279.59-1,668,917.85-512,919.49

Finding the Fourth Proportional to 1,112,279.59, 1,668,917.85 and 512,919.49

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Solution

The fourth proportional to 1,112,279.59, 1,668,917.85 and 512,919.49 is: 769,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,279.59 : 1,668,917.85 = 512,919.49 : x
  2. Step 2: Convert to fraction form
    1,112,279.59/1,668,917.85 = 512,919.49/x
  3. Step 3: Cross multiply
    1,112,279.59x = 1,668,917.85 × 512,919.49
  4. Step 4: Simplify right side
    1,112,279.59x = 856,020,492,473.90
  5. Step 5: Solve for x
    x = 856,020,492,473.90/1,112,279.59
  6. Step 6: Final answer
    x = 769,609.10

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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.