Home / 919,154.10-1,378,768.25-320,175.84

Finding the Fourth Proportional to 919,154.10, 1,378,768.25 and 320,175.84

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Solution

The fourth proportional to 919,154.10, 1,378,768.25 and 320,175.84 is: 480,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,154.10 : 1,378,768.25 = 320,175.84 : x
  2. Step 2: Convert to fraction form
    919,154.10/1,378,768.25 = 320,175.84/x
  3. Step 3: Cross multiply
    919,154.10x = 1,378,768.25 × 320,175.84
  4. Step 4: Simplify right side
    919,154.10x = 441,448,282,609.08
  5. Step 5: Solve for x
    x = 441,448,282,609.08/919,154.10
  6. Step 6: Final answer
    x = 480,276.68

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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.