Home / 389,973.12-585,788.16-367,220.88

Finding the Fourth Proportional to 389,973.12, 585,788.16 and 367,220.88

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Solution

The fourth proportional to 389,973.12, 585,788.16 and 367,220.88 is: 551,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,973.12 : 585,788.16 = 367,220.88 : x
  2. Step 2: Convert to fraction form
    389,973.12/585,788.16 = 367,220.88/x
  3. Step 3: Cross multiply
    389,973.12x = 585,788.16 × 367,220.88
  4. Step 4: Simplify right side
    389,973.12x = 215,113,643,608.78
  5. Step 5: Solve for x
    x = 215,113,643,608.78/389,973.12
  6. Step 6: Final answer
    x = 551,611.46

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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.