Home / 1,225,544.40-1,691,226.72-681,668.46

Finding the Fourth Proportional to 1,225,544.40, 1,691,226.72 and 681,668.46

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Solution

The fourth proportional to 1,225,544.40, 1,691,226.72 and 681,668.46 is: 940,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,544.40 : 1,691,226.72 = 681,668.46 : x
  2. Step 2: Convert to fraction form
    1,225,544.40/1,691,226.72 = 681,668.46/x
  3. Step 3: Cross multiply
    1,225,544.40x = 1,691,226.72 × 681,668.46
  4. Step 4: Simplify right side
    1,225,544.40x = 1,152,855,913,733.25
  5. Step 5: Solve for x
    x = 1,152,855,913,733.25/1,225,544.40
  6. Step 6: Final answer
    x = 940,688.82

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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.