Home / 389,632.60-584,679.30-284,186.20

Finding the Fourth Proportional to 389,632.60, 584,679.30 and 284,186.20

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Solution

The fourth proportional to 389,632.60, 584,679.30 and 284,186.20 is: 426,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,632.60 : 584,679.30 = 284,186.20 : x
  2. Step 2: Convert to fraction form
    389,632.60/584,679.30 = 284,186.20/x
  3. Step 3: Cross multiply
    389,632.60x = 584,679.30 × 284,186.20
  4. Step 4: Simplify right side
    389,632.60x = 166,157,788,485.66
  5. Step 5: Solve for x
    x = 166,157,788,485.66/389,632.60
  6. Step 6: Final answer
    x = 426,447.35

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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.