Home / 468,890.41-647,033.01-285,103.45

Finding the Fourth Proportional to 468,890.41, 647,033.01 and 285,103.45

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Solution

The fourth proportional to 468,890.41, 647,033.01 and 285,103.45 is: 393,421.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,890.41 : 647,033.01 = 285,103.45 : x
  2. Step 2: Convert to fraction form
    468,890.41/647,033.01 = 285,103.45/x
  3. Step 3: Cross multiply
    468,890.41x = 647,033.01 × 285,103.45
  4. Step 4: Simplify right side
    468,890.41x = 184,471,343,414.89
  5. Step 5: Solve for x
    x = 184,471,343,414.89/468,890.41
  6. Step 6: Final answer
    x = 393,421.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.