Home / 645,100.96-967,110.15-285,213.71

Finding the Fourth Proportional to 645,100.96, 967,110.15 and 285,213.71

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Solution

The fourth proportional to 645,100.96, 967,110.15 and 285,213.71 is: 427,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,100.96 : 967,110.15 = 285,213.71 : x
  2. Step 2: Convert to fraction form
    645,100.96/967,110.15 = 285,213.71/x
  3. Step 3: Cross multiply
    645,100.96x = 967,110.15 × 285,213.71
  4. Step 4: Simplify right side
    645,100.96x = 275,833,070,094.16
  5. Step 5: Solve for x
    x = 275,833,070,094.16/645,100.96
  6. Step 6: Final answer
    x = 427,581.24

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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.