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Finding the Fourth Proportional to 636,419.46, 954,893.54 and 257,607.98

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Solution

The fourth proportional to 636,419.46, 954,893.54 and 257,607.98 is: 386,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,419.46 : 954,893.54 = 257,607.98 : x
  2. Step 2: Convert to fraction form
    636,419.46/954,893.54 = 257,607.98/x
  3. Step 3: Cross multiply
    636,419.46x = 954,893.54 × 257,607.98
  4. Step 4: Simplify right side
    636,419.46x = 245,988,195,954.45
  5. Step 5: Solve for x
    x = 245,988,195,954.45/636,419.46
  6. Step 6: Final answer
    x = 386,518.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.