Home / 1,188,143.49-1,781,503.47-378,178.02

Finding the Fourth Proportional to 1,188,143.49, 1,781,503.47 and 378,178.02

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Solution

The fourth proportional to 1,188,143.49, 1,781,503.47 and 378,178.02 is: 567,040.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,143.49 : 1,781,503.47 = 378,178.02 : x
  2. Step 2: Convert to fraction form
    1,188,143.49/1,781,503.47 = 378,178.02/x
  3. Step 3: Cross multiply
    1,188,143.49x = 1,781,503.47 × 378,178.02
  4. Step 4: Simplify right side
    1,188,143.49x = 673,725,444,109.32
  5. Step 5: Solve for x
    x = 673,725,444,109.32/1,188,143.49
  6. Step 6: Final answer
    x = 567,040.47

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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.