Home / 762,579.90-1,143,619.10-257,004.64

Finding the Fourth Proportional to 762,579.90, 1,143,619.10 and 257,004.64

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Solution

The fourth proportional to 762,579.90, 1,143,619.10 and 257,004.64 is: 385,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,579.90 : 1,143,619.10 = 257,004.64 : x
  2. Step 2: Convert to fraction form
    762,579.90/1,143,619.10 = 257,004.64/x
  3. Step 3: Cross multiply
    762,579.90x = 1,143,619.10 × 257,004.64
  4. Step 4: Simplify right side
    762,579.90x = 293,915,415,092.62
  5. Step 5: Solve for x
    x = 293,915,415,092.62/762,579.90
  6. Step 6: Final answer
    x = 385,422.45

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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.