Home / 645,101.96-967,111.65-285,214.71

Finding the Fourth Proportional to 645,101.96, 967,111.65 and 285,214.71

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Solution

The fourth proportional to 645,101.96, 967,111.65 and 285,214.71 is: 427,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,101.96 : 967,111.65 = 285,214.71 : x
  2. Step 2: Convert to fraction form
    645,101.96/967,111.65 = 285,214.71/x
  3. Step 3: Cross multiply
    645,101.96x = 967,111.65 × 285,214.71
  4. Step 4: Simplify right side
    645,101.96x = 275,834,468,792.37
  5. Step 5: Solve for x
    x = 275,834,468,792.37/645,101.96
  6. Step 6: Final answer
    x = 427,582.75

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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.