Home / 645,844.80-968,421.60-271,444.80

Finding the Fourth Proportional to 645,844.80, 968,421.60 and 271,444.80

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Solution

The fourth proportional to 645,844.80, 968,421.60 and 271,444.80 is: 407,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,844.80 : 968,421.60 = 271,444.80 : x
  2. Step 2: Convert to fraction form
    645,844.80/968,421.60 = 271,444.80/x
  3. Step 3: Cross multiply
    645,844.80x = 968,421.60 × 271,444.80
  4. Step 4: Simplify right side
    645,844.80x = 262,873,007,527.68
  5. Step 5: Solve for x
    x = 262,873,007,527.68/645,844.80
  6. Step 6: Final answer
    x = 407,021.95

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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.