Home / 460,949.04-690,968.88-220,785.60

Finding the Fourth Proportional to 460,949.04, 690,968.88 and 220,785.60

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Solution

The fourth proportional to 460,949.04, 690,968.88 and 220,785.60 is: 330,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,949.04 : 690,968.88 = 220,785.60 : x
  2. Step 2: Convert to fraction form
    460,949.04/690,968.88 = 220,785.60/x
  3. Step 3: Cross multiply
    460,949.04x = 690,968.88 × 220,785.60
  4. Step 4: Simplify right side
    460,949.04x = 152,555,978,752.13
  5. Step 5: Solve for x
    x = 152,555,978,752.13/460,949.04
  6. Step 6: Final answer
    x = 330,960.62

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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.