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Finding the Fourth Proportional to 638,764.44, 881,500.50 and 352,294.44

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Solution

The fourth proportional to 638,764.44, 881,500.50 and 352,294.44 is: 486,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,764.44 : 881,500.50 = 352,294.44 : x
  2. Step 2: Convert to fraction form
    638,764.44/881,500.50 = 352,294.44/x
  3. Step 3: Cross multiply
    638,764.44x = 881,500.50 × 352,294.44
  4. Step 4: Simplify right side
    638,764.44x = 310,547,725,007.22
  5. Step 5: Solve for x
    x = 310,547,725,007.22/638,764.44
  6. Step 6: Final answer
    x = 486,169.40

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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.