Home / 638,481.34-881,077.70-348,086.62

Finding the Fourth Proportional to 638,481.34, 881,077.70 and 348,086.62

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Solution

The fourth proportional to 638,481.34, 881,077.70 and 348,086.62 is: 480,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,481.34 : 881,077.70 = 348,086.62 : x
  2. Step 2: Convert to fraction form
    638,481.34/881,077.70 = 348,086.62/x
  3. Step 3: Cross multiply
    638,481.34x = 881,077.70 × 348,086.62
  4. Step 4: Simplify right side
    638,481.34x = 306,691,356,809.94
  5. Step 5: Solve for x
    x = 306,691,356,809.94/638,481.34
  6. Step 6: Final answer
    x = 480,345.06

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1.5x scale

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.