Home / 644,445.28-889,334.04-357,992.02

Finding the Fourth Proportional to 644,445.28, 889,334.04 and 357,992.02

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Solution

The fourth proportional to 644,445.28, 889,334.04 and 357,992.02 is: 494,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,445.28 : 889,334.04 = 357,992.02 : x
  2. Step 2: Convert to fraction form
    644,445.28/889,334.04 = 357,992.02/x
  3. Step 3: Cross multiply
    644,445.28x = 889,334.04 × 357,992.02
  4. Step 4: Simplify right side
    644,445.28x = 318,374,489,434.36
  5. Step 5: Solve for x
    x = 318,374,489,434.36/644,445.28
  6. Step 6: Final answer
    x = 494,028.74

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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.