Home / 1,188,071.82-1,781,518.08-378,350.70

Finding the Fourth Proportional to 1,188,071.82, 1,781,518.08 and 378,350.70

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Solution

The fourth proportional to 1,188,071.82, 1,781,518.08 and 378,350.70 is: 567,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,071.82 : 1,781,518.08 = 378,350.70 : x
  2. Step 2: Convert to fraction form
    1,188,071.82/1,781,518.08 = 378,350.70/x
  3. Step 3: Cross multiply
    1,188,071.82x = 1,781,518.08 × 378,350.70
  4. Step 4: Simplify right side
    1,188,071.82x = 674,038,612,630.66
  5. Step 5: Solve for x
    x = 674,038,612,630.66/1,188,071.82
  6. Step 6: Final answer
    x = 567,338.27

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1.5x scale

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.