Home / 772,689.01-1,159,021.20-211,723.51

Finding the Fourth Proportional to 772,689.01, 1,159,021.20 and 211,723.51

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Solution

The fourth proportional to 772,689.01, 1,159,021.20 and 211,723.51 is: 317,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,689.01 : 1,159,021.20 = 211,723.51 : x
  2. Step 2: Convert to fraction form
    772,689.01/1,159,021.20 = 211,723.51/x
  3. Step 3: Cross multiply
    772,689.01x = 1,159,021.20 × 211,723.51
  4. Step 4: Simplify right side
    772,689.01x = 245,392,036,628.41
  5. Step 5: Solve for x
    x = 245,392,036,628.41/772,689.01
  6. Step 6: Final answer
    x = 317,581.89

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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.