Home / 389,529.74-584,328.13-136,788.55

Finding the Fourth Proportional to 389,529.74, 584,328.13 and 136,788.55

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Solution

The fourth proportional to 389,529.74, 584,328.13 and 136,788.55 is: 205,194.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,529.74 : 584,328.13 = 136,788.55 : x
  2. Step 2: Convert to fraction form
    389,529.74/584,328.13 = 136,788.55/x
  3. Step 3: Cross multiply
    389,529.74x = 584,328.13 × 136,788.55
  4. Step 4: Simplify right side
    389,529.74x = 79,929,395,824.12
  5. Step 5: Solve for x
    x = 79,929,395,824.12/389,529.74
  6. Step 6: Final answer
    x = 205,194.59

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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.