Home / 817,342.45-1,127,959.22-511,321.01

Finding the Fourth Proportional to 817,342.45, 1,127,959.22 and 511,321.01

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Solution

The fourth proportional to 817,342.45, 1,127,959.22 and 511,321.01 is: 705,639.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,342.45 : 1,127,959.22 = 511,321.01 : x
  2. Step 2: Convert to fraction form
    817,342.45/1,127,959.22 = 511,321.01/x
  3. Step 3: Cross multiply
    817,342.45x = 1,127,959.22 × 511,321.01
  4. Step 4: Simplify right side
    817,342.45x = 576,749,243,247.72
  5. Step 5: Solve for x
    x = 576,749,243,247.72/817,342.45
  6. Step 6: Final answer
    x = 705,639.66

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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.