Home / 1,237,315.20-1,855,983.76-489,361.28

Finding the Fourth Proportional to 1,237,315.20, 1,855,983.76 and 489,361.28

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Solution

The fourth proportional to 1,237,315.20, 1,855,983.76 and 489,361.28 is: 734,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,315.20 : 1,855,983.76 = 489,361.28 : x
  2. Step 2: Convert to fraction form
    1,237,315.20/1,855,983.76 = 489,361.28/x
  3. Step 3: Cross multiply
    1,237,315.20x = 1,855,983.76 × 489,361.28
  4. Step 4: Simplify right side
    1,237,315.20x = 908,246,588,452.81
  5. Step 5: Solve for x
    x = 908,246,588,452.81/1,237,315.20
  6. Step 6: Final answer
    x = 734,046.25

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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.