Home / 913,418.56-1,260,519.78-505,548.28

Finding the Fourth Proportional to 913,418.56, 1,260,519.78 and 505,548.28

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Solution

The fourth proportional to 913,418.56, 1,260,519.78 and 505,548.28 is: 697,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,418.56 : 1,260,519.78 = 505,548.28 : x
  2. Step 2: Convert to fraction form
    913,418.56/1,260,519.78 = 505,548.28/x
  3. Step 3: Cross multiply
    913,418.56x = 1,260,519.78 × 505,548.28
  4. Step 4: Simplify right side
    913,418.56x = 637,253,606,684.98
  5. Step 5: Solve for x
    x = 637,253,606,684.98/913,418.56
  6. Step 6: Final answer
    x = 697,657.83

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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.