Home / 816,324.40-1,224,166.20-310,616.80

Finding the Fourth Proportional to 816,324.40, 1,224,166.20 and 310,616.80

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Solution

The fourth proportional to 816,324.40, 1,224,166.20 and 310,616.80 is: 465,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,324.40 : 1,224,166.20 = 310,616.80 : x
  2. Step 2: Convert to fraction form
    816,324.40/1,224,166.20 = 310,616.80/x
  3. Step 3: Cross multiply
    816,324.40x = 1,224,166.20 × 310,616.80
  4. Step 4: Simplify right side
    816,324.40x = 380,246,587,712.16
  5. Step 5: Solve for x
    x = 380,246,587,712.16/816,324.40
  6. Step 6: Final answer
    x = 465,803.29

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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.