Home / 1,288,172.98-1,932,259.47-489,265.53

Finding the Fourth Proportional to 1,288,172.98, 1,932,259.47 and 489,265.53

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Solution

The fourth proportional to 1,288,172.98, 1,932,259.47 and 489,265.53 is: 733,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,172.98 : 1,932,259.47 = 489,265.53 : x
  2. Step 2: Convert to fraction form
    1,288,172.98/1,932,259.47 = 489,265.53/x
  3. Step 3: Cross multiply
    1,288,172.98x = 1,932,259.47 × 489,265.53
  4. Step 4: Simplify right side
    1,288,172.98x = 945,387,953,687.07
  5. Step 5: Solve for x
    x = 945,387,953,687.07/1,288,172.98
  6. Step 6: Final answer
    x = 733,898.30

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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.