Home / 1,188,137.16-1,781,494.02-378,171.72

Finding the Fourth Proportional to 1,188,137.16, 1,781,494.02 and 378,171.72

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Solution

The fourth proportional to 1,188,137.16, 1,781,494.02 and 378,171.72 is: 567,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,137.16 : 1,781,494.02 = 378,171.72 : x
  2. Step 2: Convert to fraction form
    1,188,137.16/1,781,494.02 = 378,171.72/x
  3. Step 3: Cross multiply
    1,188,137.16x = 1,781,494.02 × 378,171.72
  4. Step 4: Simplify right side
    1,188,137.16x = 673,710,657,713.11
  5. Step 5: Solve for x
    x = 673,710,657,713.11/1,188,137.16
  6. Step 6: Final answer
    x = 567,031.05

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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.