Home / 639,019.46-881,841.93-352,551.62

Finding the Fourth Proportional to 639,019.46, 881,841.93 and 352,551.62

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Solution

The fourth proportional to 639,019.46, 881,841.93 and 352,551.62 is: 486,518.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,019.46 : 881,841.93 = 352,551.62 : x
  2. Step 2: Convert to fraction form
    639,019.46/881,841.93 = 352,551.62/x
  3. Step 3: Cross multiply
    639,019.46x = 881,841.93 × 352,551.62
  4. Step 4: Simplify right side
    639,019.46x = 310,894,801,005.43
  5. Step 5: Solve for x
    x = 310,894,801,005.43/639,019.46
  6. Step 6: Final answer
    x = 486,518.52

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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.