Home / 639,376.54-882,276.80-352,878.17

Finding the Fourth Proportional to 639,376.54, 882,276.80 and 352,878.17

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Solution

The fourth proportional to 639,376.54, 882,276.80 and 352,878.17 is: 486,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,376.54 : 882,276.80 = 352,878.17 : x
  2. Step 2: Convert to fraction form
    639,376.54/882,276.80 = 352,878.17/x
  3. Step 3: Cross multiply
    639,376.54x = 882,276.80 × 352,878.17
  4. Step 4: Simplify right side
    639,376.54x = 311,336,225,705.34
  5. Step 5: Solve for x
    x = 311,336,225,705.34/639,376.54
  6. Step 6: Final answer
    x = 486,937.21

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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.