Home / 498,998.90-748,968.15-262,511.30

Finding the Fourth Proportional to 498,998.90, 748,968.15 and 262,511.30

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Solution

The fourth proportional to 498,998.90, 748,968.15 and 262,511.30 is: 394,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,998.90 : 748,968.15 = 262,511.30 : x
  2. Step 2: Convert to fraction form
    498,998.90/748,968.15 = 262,511.30/x
  3. Step 3: Cross multiply
    498,998.90x = 748,968.15 × 262,511.30
  4. Step 4: Simplify right side
    498,998.90x = 196,612,602,715.10
  5. Step 5: Solve for x
    x = 196,612,602,715.10/498,998.90
  6. Step 6: Final answer
    x = 394,014.10

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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.