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Finding the Fourth Proportional to 438,810.70, 658,216.05 and 367,951.90

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Solution

The fourth proportional to 438,810.70, 658,216.05 and 367,951.90 is: 551,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,810.70 : 658,216.05 = 367,951.90 : x
  2. Step 2: Convert to fraction form
    438,810.70/658,216.05 = 367,951.90/x
  3. Step 3: Cross multiply
    438,810.70x = 658,216.05 × 367,951.90
  4. Step 4: Simplify right side
    438,810.70x = 242,191,846,208.00
  5. Step 5: Solve for x
    x = 242,191,846,208.00/438,810.70
  6. Step 6: Final answer
    x = 551,927.85

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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.