Home / 1,187,936-1,782,081.88-429,954.82

Finding the Fourth Proportional to 1,187,936, 1,782,081.88 and 429,954.82

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Solution

The fourth proportional to 1,187,936, 1,782,081.88 and 429,954.82 is: 644,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,936 : 1,782,081.88 = 429,954.82 : x
  2. Step 2: Convert to fraction form
    1,187,936/1,782,081.88 = 429,954.82/x
  3. Step 3: Cross multiply
    1,187,936x = 1,782,081.88 × 429,954.82
  4. Step 4: Simplify right side
    1,187,936x = 766,214,682,880.48
  5. Step 5: Solve for x
    x = 766,214,682,880.48/1,187,936
  6. Step 6: Final answer
    x = 644,996.60

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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.