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Finding the Fourth Proportional to 633,652.39, 874,406.86 and 361,709.47

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Solution

The fourth proportional to 633,652.39, 874,406.86 and 361,709.47 is: 499,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,652.39 : 874,406.86 = 361,709.47 : x
  2. Step 2: Convert to fraction form
    633,652.39/874,406.86 = 361,709.47/x
  3. Step 3: Cross multiply
    633,652.39x = 874,406.86 × 361,709.47
  4. Step 4: Simplify right side
    633,652.39x = 316,281,244,118.32
  5. Step 5: Solve for x
    x = 316,281,244,118.32/633,652.39
  6. Step 6: Final answer
    x = 499,139.98

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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.