Home / 390,028.20-584,999.10-109,573.80

Finding the Fourth Proportional to 390,028.20, 584,999.10 and 109,573.80

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Solution

The fourth proportional to 390,028.20, 584,999.10 and 109,573.80 is: 164,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,028.20 : 584,999.10 = 109,573.80 : x
  2. Step 2: Convert to fraction form
    390,028.20/584,999.10 = 109,573.80/x
  3. Step 3: Cross multiply
    390,028.20x = 584,999.10 × 109,573.80
  4. Step 4: Simplify right side
    390,028.20x = 64,100,574,383.58
  5. Step 5: Solve for x
    x = 64,100,574,383.58/390,028.20
  6. Step 6: Final answer
    x = 164,348.56

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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.