Home / 1,185,713.90-1,777,481-427,369.76

Finding the Fourth Proportional to 1,185,713.90, 1,777,481 and 427,369.76

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Solution

The fourth proportional to 1,185,713.90, 1,777,481 and 427,369.76 is: 640,661.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,713.90 : 1,777,481 = 427,369.76 : x
  2. Step 2: Convert to fraction form
    1,185,713.90/1,777,481 = 427,369.76/x
  3. Step 3: Cross multiply
    1,185,713.90x = 1,777,481 × 427,369.76
  4. Step 4: Simplify right side
    1,185,713.90x = 759,641,628,374.56
  5. Step 5: Solve for x
    x = 759,641,628,374.56/1,185,713.90
  6. Step 6: Final answer
    x = 640,661.82

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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.