Home / 639,379.10-882,329.67-348,981.05

Finding the Fourth Proportional to 639,379.10, 882,329.67 and 348,981.05

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Solution

The fourth proportional to 639,379.10, 882,329.67 and 348,981.05 is: 481,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,379.10 : 882,329.67 = 348,981.05 : x
  2. Step 2: Convert to fraction form
    639,379.10/882,329.67 = 348,981.05/x
  3. Step 3: Cross multiply
    639,379.10x = 882,329.67 × 348,981.05
  4. Step 4: Simplify right side
    639,379.10x = 307,916,336,888.58
  5. Step 5: Solve for x
    x = 307,916,336,888.58/639,379.10
  6. Step 6: Final answer
    x = 481,586.49

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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.