Home / 1,405,733.76-2,108,581.92-340,785.28

Finding the Fourth Proportional to 1,405,733.76, 2,108,581.92 and 340,785.28

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Solution

The fourth proportional to 1,405,733.76, 2,108,581.92 and 340,785.28 is: 511,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,733.76 : 2,108,581.92 = 340,785.28 : x
  2. Step 2: Convert to fraction form
    1,405,733.76/2,108,581.92 = 340,785.28/x
  3. Step 3: Cross multiply
    1,405,733.76x = 2,108,581.92 × 340,785.28
  4. Step 4: Simplify right side
    1,405,733.76x = 718,573,680,010.14
  5. Step 5: Solve for x
    x = 718,573,680,010.14/1,405,733.76
  6. Step 6: Final answer
    x = 511,173.38

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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.