Home / 639,008.91-881,835.39-352,528.92

Finding the Fourth Proportional to 639,008.91, 881,835.39 and 352,528.92

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Solution

The fourth proportional to 639,008.91, 881,835.39 and 352,528.92 is: 486,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,008.91 : 881,835.39 = 352,528.92 : x
  2. Step 2: Convert to fraction form
    639,008.91/881,835.39 = 352,528.92/x
  3. Step 3: Cross multiply
    639,008.91x = 881,835.39 × 352,528.92
  4. Step 4: Simplify right side
    639,008.91x = 310,872,477,654.48
  5. Step 5: Solve for x
    x = 310,872,477,654.48/639,008.91
  6. Step 6: Final answer
    x = 486,491.62

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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.