Home / 639,104.48-881,967.04-352,624.40

Finding the Fourth Proportional to 639,104.48, 881,967.04 and 352,624.40

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Solution

The fourth proportional to 639,104.48, 881,967.04 and 352,624.40 is: 486,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,104.48 : 881,967.04 = 352,624.40 : x
  2. Step 2: Convert to fraction form
    639,104.48/881,967.04 = 352,624.40/x
  3. Step 3: Cross multiply
    639,104.48x = 881,967.04 × 352,624.40
  4. Step 4: Simplify right side
    639,104.48x = 311,003,098,299.78
  5. Step 5: Solve for x
    x = 311,003,098,299.78/639,104.48
  6. Step 6: Final answer
    x = 486,623.25

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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.