Home / 1,185,662.88-1,778,777.28-386,945.91

Finding the Fourth Proportional to 1,185,662.88, 1,778,777.28 and 386,945.91

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Solution

The fourth proportional to 1,185,662.88, 1,778,777.28 and 386,945.91 is: 580,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,662.88 : 1,778,777.28 = 386,945.91 : x
  2. Step 2: Convert to fraction form
    1,185,662.88/1,778,777.28 = 386,945.91/x
  3. Step 3: Cross multiply
    1,185,662.88x = 1,778,777.28 × 386,945.91
  4. Step 4: Simplify right side
    1,185,662.88x = 688,290,593,296.93
  5. Step 5: Solve for x
    x = 688,290,593,296.93/1,185,662.88
  6. Step 6: Final answer
    x = 580,511.21

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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.