Home / 1,072,321.40-1,606,031.58-511,749.56

Finding the Fourth Proportional to 1,072,321.40, 1,606,031.58 and 511,749.56

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Solution

The fourth proportional to 1,072,321.40, 1,606,031.58 and 511,749.56 is: 766,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,321.40 : 1,606,031.58 = 511,749.56 : x
  2. Step 2: Convert to fraction form
    1,072,321.40/1,606,031.58 = 511,749.56/x
  3. Step 3: Cross multiply
    1,072,321.40x = 1,606,031.58 × 511,749.56
  4. Step 4: Simplify right side
    1,072,321.40x = 821,885,954,411.11
  5. Step 5: Solve for x
    x = 821,885,954,411.11/1,072,321.40
  6. Step 6: Final answer
    x = 766,454.87

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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.