Home / 839,931.80-1,259,897.70-774,977.90

Finding the Fourth Proportional to 839,931.80, 1,259,897.70 and 774,977.90

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Solution

The fourth proportional to 839,931.80, 1,259,897.70 and 774,977.90 is: 1,162,466.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,931.80 : 1,259,897.70 = 774,977.90 : x
  2. Step 2: Convert to fraction form
    839,931.80/1,259,897.70 = 774,977.90/x
  3. Step 3: Cross multiply
    839,931.80x = 1,259,897.70 × 774,977.90
  4. Step 4: Simplify right side
    839,931.80x = 976,392,873,760.83
  5. Step 5: Solve for x
    x = 976,392,873,760.83/839,931.80
  6. Step 6: Final answer
    x = 1,162,466.85

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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.