Home / 389,755-584,622.42-105,473.08

Finding the Fourth Proportional to 389,755, 584,622.42 and 105,473.08

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Solution

The fourth proportional to 389,755, 584,622.42 and 105,473.08 is: 158,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,755 : 584,622.42 = 105,473.08 : x
  2. Step 2: Convert to fraction form
    389,755/584,622.42 = 105,473.08/x
  3. Step 3: Cross multiply
    389,755x = 584,622.42 × 105,473.08
  4. Step 4: Simplify right side
    389,755x = 61,661,927,274.45
  5. Step 5: Solve for x
    x = 61,661,927,274.45/389,755
  6. Step 6: Final answer
    x = 158,206.89

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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.