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Finding the Fourth Proportional to 680,597.96, 939,208.62 and 374,671.86

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Solution

The fourth proportional to 680,597.96, 939,208.62 and 374,671.86 is: 517,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,597.96 : 939,208.62 = 374,671.86 : x
  2. Step 2: Convert to fraction form
    680,597.96/939,208.62 = 374,671.86/x
  3. Step 3: Cross multiply
    680,597.96x = 939,208.62 × 374,671.86
  4. Step 4: Simplify right side
    680,597.96x = 351,895,040,583.43
  5. Step 5: Solve for x
    x = 351,895,040,583.43/680,597.96
  6. Step 6: Final answer
    x = 517,038.05

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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.