Home / 449,747.11-620,591.04-288,820.14

Finding the Fourth Proportional to 449,747.11, 620,591.04 and 288,820.14

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Solution

The fourth proportional to 449,747.11, 620,591.04 and 288,820.14 is: 398,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,747.11 : 620,591.04 = 288,820.14 : x
  2. Step 2: Convert to fraction form
    449,747.11/620,591.04 = 288,820.14/x
  3. Step 3: Cross multiply
    449,747.11x = 620,591.04 × 288,820.14
  4. Step 4: Simplify right side
    449,747.11x = 179,239,191,055.55
  5. Step 5: Solve for x
    x = 179,239,191,055.55/449,747.11
  6. Step 6: Final answer
    x = 398,533.28

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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.