Home / 1,226,787-1,692,947.84-682,921.82

Finding the Fourth Proportional to 1,226,787, 1,692,947.84 and 682,921.82

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Solution

The fourth proportional to 1,226,787, 1,692,947.84 and 682,921.82 is: 942,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,787 : 1,692,947.84 = 682,921.82 : x
  2. Step 2: Convert to fraction form
    1,226,787/1,692,947.84 = 682,921.82/x
  3. Step 3: Cross multiply
    1,226,787x = 1,692,947.84 × 682,921.82
  4. Step 4: Simplify right side
    1,226,787x = 1,156,151,008,178.52
  5. Step 5: Solve for x
    x = 1,156,151,008,178.52/1,226,787
  6. Step 6: Final answer
    x = 942,421.96

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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.