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Finding the Fourth Proportional to 680,028.84, 938,402.74 and 374,055.84

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Solution

The fourth proportional to 680,028.84, 938,402.74 and 374,055.84 is: 516,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,028.84 : 938,402.74 = 374,055.84 : x
  2. Step 2: Convert to fraction form
    680,028.84/938,402.74 = 374,055.84/x
  3. Step 3: Cross multiply
    680,028.84x = 938,402.74 × 374,055.84
  4. Step 4: Simplify right side
    680,028.84x = 351,015,025,169.00
  5. Step 5: Solve for x
    x = 351,015,025,169.00/680,028.84
  6. Step 6: Final answer
    x = 516,176.67

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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.