Home / 639,376.63-882,276.93-352,878.27

Finding the Fourth Proportional to 639,376.63, 882,276.93 and 352,878.27

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Solution

The fourth proportional to 639,376.63, 882,276.93 and 352,878.27 is: 486,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,376.63 : 882,276.93 = 352,878.27 : x
  2. Step 2: Convert to fraction form
    639,376.63/882,276.93 = 352,878.27/x
  3. Step 3: Cross multiply
    639,376.63x = 882,276.93 × 352,878.27
  4. Step 4: Simplify right side
    639,376.63x = 311,336,352,307.93
  5. Step 5: Solve for x
    x = 311,336,352,307.93/639,376.63
  6. Step 6: Final answer
    x = 486,937.34

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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.