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Finding the Fourth Proportional to 462,613, 638,405.94 and 250,645

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Solution

The fourth proportional to 462,613, 638,405.94 and 250,645 is: 345,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,613 : 638,405.94 = 250,645 : x
  2. Step 2: Convert to fraction form
    462,613/638,405.94 = 250,645/x
  3. Step 3: Cross multiply
    462,613x = 638,405.94 × 250,645
  4. Step 4: Simplify right side
    462,613x = 160,013,256,831.30
  5. Step 5: Solve for x
    x = 160,013,256,831.30/462,613
  6. Step 6: Final answer
    x = 345,890.10

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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.