Home / 324,623.80-486,935.70-212,649.40

Finding the Fourth Proportional to 324,623.80, 486,935.70 and 212,649.40

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Solution

The fourth proportional to 324,623.80, 486,935.70 and 212,649.40 is: 318,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,623.80 : 486,935.70 = 212,649.40 : x
  2. Step 2: Convert to fraction form
    324,623.80/486,935.70 = 212,649.40/x
  3. Step 3: Cross multiply
    324,623.80x = 486,935.70 × 212,649.40
  4. Step 4: Simplify right side
    324,623.80x = 103,546,584,443.58
  5. Step 5: Solve for x
    x = 103,546,584,443.58/324,623.80
  6. Step 6: Final answer
    x = 318,974.10

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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.