Home / 1,421,595.81-1,961,797.46-777,015.63

Finding the Fourth Proportional to 1,421,595.81, 1,961,797.46 and 777,015.63

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Solution

The fourth proportional to 1,421,595.81, 1,961,797.46 and 777,015.63 is: 1,072,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,595.81 : 1,961,797.46 = 777,015.63 : x
  2. Step 2: Convert to fraction form
    1,421,595.81/1,961,797.46 = 777,015.63/x
  3. Step 3: Cross multiply
    1,421,595.81x = 1,961,797.46 × 777,015.63
  4. Step 4: Simplify right side
    1,421,595.81x = 1,524,347,285,429.22
  5. Step 5: Solve for x
    x = 1,524,347,285,429.22/1,421,595.81
  6. Step 6: Final answer
    x = 1,072,278.97

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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.