Home / 1,276,995.08-1,915,499.43-378,444.60

Finding the Fourth Proportional to 1,276,995.08, 1,915,499.43 and 378,444.60

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Solution

The fourth proportional to 1,276,995.08, 1,915,499.43 and 378,444.60 is: 567,668.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,995.08 : 1,915,499.43 = 378,444.60 : x
  2. Step 2: Convert to fraction form
    1,276,995.08/1,915,499.43 = 378,444.60/x
  3. Step 3: Cross multiply
    1,276,995.08x = 1,915,499.43 × 378,444.60
  4. Step 4: Simplify right side
    1,276,995.08x = 724,910,415,586.58
  5. Step 5: Solve for x
    x = 724,910,415,586.58/1,276,995.08
  6. Step 6: Final answer
    x = 567,668.92

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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.