Home / 389,623.40-585,126.30-301,092.20

Finding the Fourth Proportional to 389,623.40, 585,126.30 and 301,092.20

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Solution

The fourth proportional to 389,623.40, 585,126.30 and 301,092.20 is: 452,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.40 : 585,126.30 = 301,092.20 : x
  2. Step 2: Convert to fraction form
    389,623.40/585,126.30 = 301,092.20/x
  3. Step 3: Cross multiply
    389,623.40x = 585,126.30 × 301,092.20
  4. Step 4: Simplify right side
    389,623.40x = 176,176,964,944.86
  5. Step 5: Solve for x
    x = 176,176,964,944.86/389,623.40
  6. Step 6: Final answer
    x = 452,172.44

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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.