Home / 639,816.39-882,541.08-486,518.49

Finding the Fourth Proportional to 639,816.39, 882,541.08 and 486,518.49

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Solution

The fourth proportional to 639,816.39, 882,541.08 and 486,518.49 is: 671,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,816.39 : 882,541.08 = 486,518.49 : x
  2. Step 2: Convert to fraction form
    639,816.39/882,541.08 = 486,518.49/x
  3. Step 3: Cross multiply
    639,816.39x = 882,541.08 × 486,518.49
  4. Step 4: Simplify right side
    639,816.39x = 429,372,553,604.57
  5. Step 5: Solve for x
    x = 429,372,553,604.57/639,816.39
  6. Step 6: Final answer
    x = 671,087.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.