Home / 1,188,116-1,781,233.58-429,839.36

Finding the Fourth Proportional to 1,188,116, 1,781,233.58 and 429,839.36

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Solution

The fourth proportional to 1,188,116, 1,781,233.58 and 429,839.36 is: 644,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,116 : 1,781,233.58 = 429,839.36 : x
  2. Step 2: Convert to fraction form
    1,188,116/1,781,233.58 = 429,839.36/x
  3. Step 3: Cross multiply
    1,188,116x = 1,781,233.58 × 429,839.36
  4. Step 4: Simplify right side
    1,188,116x = 765,644,302,037.71
  5. Step 5: Solve for x
    x = 765,644,302,037.71/1,188,116
  6. Step 6: Final answer
    x = 644,418.81

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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.