Home / 451,948.98-623,981.75-280,049.36

Finding the Fourth Proportional to 451,948.98, 623,981.75 and 280,049.36

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Solution

The fourth proportional to 451,948.98, 623,981.75 and 280,049.36 is: 386,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,948.98 : 623,981.75 = 280,049.36 : x
  2. Step 2: Convert to fraction form
    451,948.98/623,981.75 = 280,049.36/x
  3. Step 3: Cross multiply
    451,948.98x = 623,981.75 × 280,049.36
  4. Step 4: Simplify right side
    451,948.98x = 174,745,687,319.40
  5. Step 5: Solve for x
    x = 174,745,687,319.40/451,948.98
  6. Step 6: Final answer
    x = 386,649.15

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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.