Home / 389,985.06-584,903.61-190,104.42

Finding the Fourth Proportional to 389,985.06, 584,903.61 and 190,104.42

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Solution

The fourth proportional to 389,985.06, 584,903.61 and 190,104.42 is: 285,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,985.06 : 584,903.61 = 190,104.42 : x
  2. Step 2: Convert to fraction form
    389,985.06/584,903.61 = 190,104.42/x
  3. Step 3: Cross multiply
    389,985.06x = 584,903.61 × 190,104.42
  4. Step 4: Simplify right side
    389,985.06x = 111,192,763,472.48
  5. Step 5: Solve for x
    x = 111,192,763,472.48/389,985.06
  6. Step 6: Final answer
    x = 285,120.57

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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.