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Finding the Fourth Proportional to 662,089.23, 993,129.06 and 438,450.71

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Solution

The fourth proportional to 662,089.23, 993,129.06 and 438,450.71 is: 657,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,089.23 : 993,129.06 = 438,450.71 : x
  2. Step 2: Convert to fraction form
    662,089.23/993,129.06 = 438,450.71/x
  3. Step 3: Cross multiply
    662,089.23x = 993,129.06 × 438,450.71
  4. Step 4: Simplify right side
    662,089.23x = 435,438,140,188.94
  5. Step 5: Solve for x
    x = 435,438,140,188.94/662,089.23
  6. Step 6: Final answer
    x = 657,672.90

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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.