Home / 689,309.56-1,033,964.46-215,994.76

Finding the Fourth Proportional to 689,309.56, 1,033,964.46 and 215,994.76

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Solution

The fourth proportional to 689,309.56, 1,033,964.46 and 215,994.76 is: 323,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,309.56 : 1,033,964.46 = 215,994.76 : x
  2. Step 2: Convert to fraction form
    689,309.56/1,033,964.46 = 215,994.76/x
  3. Step 3: Cross multiply
    689,309.56x = 1,033,964.46 × 215,994.76
  4. Step 4: Simplify right side
    689,309.56x = 223,330,905,386.23
  5. Step 5: Solve for x
    x = 223,330,905,386.23/689,309.56
  6. Step 6: Final answer
    x = 323,992.18

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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.