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Finding the Fourth Proportional to 680,777.56, 939,473.13 and 374,855.14

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Solution

The fourth proportional to 680,777.56, 939,473.13 and 374,855.14 is: 517,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,777.56 : 939,473.13 = 374,855.14 : x
  2. Step 2: Convert to fraction form
    680,777.56/939,473.13 = 374,855.14/x
  3. Step 3: Cross multiply
    680,777.56x = 939,473.13 × 374,855.14
  4. Step 4: Simplify right side
    680,777.56x = 352,166,331,672.39
  5. Step 5: Solve for x
    x = 352,166,331,672.39/680,777.56
  6. Step 6: Final answer
    x = 517,300.15

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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.