Home / 1,185,131.70-1,635,478.46-641,276.76

Finding the Fourth Proportional to 1,185,131.70, 1,635,478.46 and 641,276.76

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Solution

The fourth proportional to 1,185,131.70, 1,635,478.46 and 641,276.76 is: 884,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,131.70 : 1,635,478.46 = 641,276.76 : x
  2. Step 2: Convert to fraction form
    1,185,131.70/1,635,478.46 = 641,276.76/x
  3. Step 3: Cross multiply
    1,185,131.70x = 1,635,478.46 × 641,276.76
  4. Step 4: Simplify right side
    1,185,131.70x = 1,048,794,327,878.59
  5. Step 5: Solve for x
    x = 1,048,794,327,878.59/1,185,131.70
  6. Step 6: Final answer
    x = 884,960.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.