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Finding the Fourth Proportional to 680,467.88, 939,038.24 and 374,537.72

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Solution

The fourth proportional to 680,467.88, 939,038.24 and 374,537.72 is: 516,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,467.88 : 939,038.24 = 374,537.72 : x
  2. Step 2: Convert to fraction form
    680,467.88/939,038.24 = 374,537.72/x
  3. Step 3: Cross multiply
    680,467.88x = 939,038.24 × 374,537.72
  4. Step 4: Simplify right side
    680,467.88x = 351,705,241,402.41
  5. Step 5: Solve for x
    x = 351,705,241,402.41/680,467.88
  6. Step 6: Final answer
    x = 516,857.96

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1.5x scale

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.