Home / 940,690.32-1,296,917.37-678,825.87

Finding the Fourth Proportional to 940,690.32, 1,296,917.37 and 678,825.87

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Solution

The fourth proportional to 940,690.32, 1,296,917.37 and 678,825.87 is: 935,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,690.32 : 1,296,917.37 = 678,825.87 : x
  2. Step 2: Convert to fraction form
    940,690.32/1,296,917.37 = 678,825.87/x
  3. Step 3: Cross multiply
    940,690.32x = 1,296,917.37 × 678,825.87
  4. Step 4: Simplify right side
    940,690.32x = 880,381,062,008.36
  5. Step 5: Solve for x
    x = 880,381,062,008.36/940,690.32
  6. Step 6: Final answer
    x = 935,888.30

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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.