Home / 816,292.25-1,224,450.79-310,881.21

Finding the Fourth Proportional to 816,292.25, 1,224,450.79 and 310,881.21

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Solution

The fourth proportional to 816,292.25, 1,224,450.79 and 310,881.21 is: 466,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,292.25 : 1,224,450.79 = 310,881.21 : x
  2. Step 2: Convert to fraction form
    816,292.25/1,224,450.79 = 310,881.21/x
  3. Step 3: Cross multiply
    816,292.25x = 1,224,450.79 × 310,881.21
  4. Step 4: Simplify right side
    816,292.25x = 380,658,739,560.47
  5. Step 5: Solve for x
    x = 380,658,739,560.47/816,292.25
  6. Step 6: Final answer
    x = 466,326.54

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1.5x scale

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.