Home / 903,912.48-1,247,395.78-496,021.12

Finding the Fourth Proportional to 903,912.48, 1,247,395.78 and 496,021.12

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Solution

The fourth proportional to 903,912.48, 1,247,395.78 and 496,021.12 is: 684,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,912.48 : 1,247,395.78 = 496,021.12 : x
  2. Step 2: Convert to fraction form
    903,912.48/1,247,395.78 = 496,021.12/x
  3. Step 3: Cross multiply
    903,912.48x = 1,247,395.78 × 496,021.12
  4. Step 4: Simplify right side
    903,912.48x = 618,734,651,878.87
  5. Step 5: Solve for x
    x = 618,734,651,878.87/903,912.48
  6. Step 6: Final answer
    x = 684,507.26

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1.5x scale

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.