Home / 1,279,345.35-1,764,756.46-826,636.35

Finding the Fourth Proportional to 1,279,345.35, 1,764,756.46 and 826,636.35

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Solution

The fourth proportional to 1,279,345.35, 1,764,756.46 and 826,636.35 is: 1,140,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,345.35 : 1,764,756.46 = 826,636.35 : x
  2. Step 2: Convert to fraction form
    1,279,345.35/1,764,756.46 = 826,636.35/x
  3. Step 3: Cross multiply
    1,279,345.35x = 1,764,756.46 × 826,636.35
  4. Step 4: Simplify right side
    1,279,345.35x = 1,458,811,838,733.32
  5. Step 5: Solve for x
    x = 1,458,811,838,733.32/1,279,345.35
  6. Step 6: Final answer
    x = 1,140,279.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.