Home / 389,042.55-583,564.07-122,830.23

Finding the Fourth Proportional to 389,042.55, 583,564.07 and 122,830.23

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Solution

The fourth proportional to 389,042.55, 583,564.07 and 122,830.23 is: 184,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,042.55 : 583,564.07 = 122,830.23 : x
  2. Step 2: Convert to fraction form
    389,042.55/583,564.07 = 122,830.23/x
  3. Step 3: Cross multiply
    389,042.55x = 583,564.07 × 122,830.23
  4. Step 4: Simplify right side
    389,042.55x = 71,679,308,323.68
  5. Step 5: Solve for x
    x = 71,679,308,323.68/389,042.55
  6. Step 6: Final answer
    x = 184,245.42

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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.