Home / 466,646.86-644,021.04-285,479.43

Finding the Fourth Proportional to 466,646.86, 644,021.04 and 285,479.43

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Solution

The fourth proportional to 466,646.86, 644,021.04 and 285,479.43 is: 393,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,646.86 : 644,021.04 = 285,479.43 : x
  2. Step 2: Convert to fraction form
    466,646.86/644,021.04 = 285,479.43/x
  3. Step 3: Cross multiply
    466,646.86x = 644,021.04 × 285,479.43
  4. Step 4: Simplify right side
    466,646.86x = 183,854,759,407.21
  5. Step 5: Solve for x
    x = 183,854,759,407.21/466,646.86
  6. Step 6: Final answer
    x = 393,991.21

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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.