Home / 639,009.60-881,836.23-352,529.61

Finding the Fourth Proportional to 639,009.60, 881,836.23 and 352,529.61

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Solution

The fourth proportional to 639,009.60, 881,836.23 and 352,529.61 is: 486,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,009.60 : 881,836.23 = 352,529.61 : x
  2. Step 2: Convert to fraction form
    639,009.60/881,836.23 = 352,529.61/x
  3. Step 3: Cross multiply
    639,009.60x = 881,836.23 × 352,529.61
  4. Step 4: Simplify right side
    639,009.60x = 310,873,382,245.77
  5. Step 5: Solve for x
    x = 310,873,382,245.77/639,009.60
  6. Step 6: Final answer
    x = 486,492.51

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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.