Home / 629,421.72-943,216.74-389,022.36

Finding the Fourth Proportional to 629,421.72, 943,216.74 and 389,022.36

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Solution

The fourth proportional to 629,421.72, 943,216.74 and 389,022.36 is: 582,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,421.72 : 943,216.74 = 389,022.36 : x
  2. Step 2: Convert to fraction form
    629,421.72/943,216.74 = 389,022.36/x
  3. Step 3: Cross multiply
    629,421.72x = 943,216.74 × 389,022.36
  4. Step 4: Simplify right side
    629,421.72x = 366,932,402,186.31
  5. Step 5: Solve for x
    x = 366,932,402,186.31/629,421.72
  6. Step 6: Final answer
    x = 582,967.49

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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.