Home / 639,329.60-882,262.34-348,943.25

Finding the Fourth Proportional to 639,329.60, 882,262.34 and 348,943.25

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Solution

The fourth proportional to 639,329.60, 882,262.34 and 348,943.25 is: 481,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,329.60 : 882,262.34 = 348,943.25 : x
  2. Step 2: Convert to fraction form
    639,329.60/882,262.34 = 348,943.25/x
  3. Step 3: Cross multiply
    639,329.60x = 882,262.34 × 348,943.25
  4. Step 4: Simplify right side
    639,329.60x = 307,859,482,116.18
  5. Step 5: Solve for x
    x = 307,859,482,116.18/639,329.60
  6. Step 6: Final answer
    x = 481,534.85

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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.