Home / 645,019.26-967,155.04-218,412.69

Finding the Fourth Proportional to 645,019.26, 967,155.04 and 218,412.69

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Solution

The fourth proportional to 645,019.26, 967,155.04 and 218,412.69 is: 327,492.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,019.26 : 967,155.04 = 218,412.69 : x
  2. Step 2: Convert to fraction form
    645,019.26/967,155.04 = 218,412.69/x
  3. Step 3: Cross multiply
    645,019.26x = 967,155.04 × 218,412.69
  4. Step 4: Simplify right side
    645,019.26x = 211,238,933,933.46
  5. Step 5: Solve for x
    x = 211,238,933,933.46/645,019.26
  6. Step 6: Final answer
    x = 327,492.44

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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.