Home / 748,329.30-1,122,311.70-215,794.80

Finding the Fourth Proportional to 748,329.30, 1,122,311.70 and 215,794.80

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Solution

The fourth proportional to 748,329.30, 1,122,311.70 and 215,794.80 is: 323,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,329.30 : 1,122,311.70 = 215,794.80 : x
  2. Step 2: Convert to fraction form
    748,329.30/1,122,311.70 = 215,794.80/x
  3. Step 3: Cross multiply
    748,329.30x = 1,122,311.70 × 215,794.80
  4. Step 4: Simplify right side
    748,329.30x = 242,189,028,839.16
  5. Step 5: Solve for x
    x = 242,189,028,839.16/748,329.30
  6. Step 6: Final answer
    x = 323,639.64

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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.