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Finding the Fourth Proportional to 674,494.86, 930,805.34 and 368,571.26

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Solution

The fourth proportional to 674,494.86, 930,805.34 and 368,571.26 is: 508,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,494.86 : 930,805.34 = 368,571.26 : x
  2. Step 2: Convert to fraction form
    674,494.86/930,805.34 = 368,571.26/x
  3. Step 3: Cross multiply
    674,494.86x = 930,805.34 × 368,571.26
  4. Step 4: Simplify right side
    674,494.86x = 343,068,096,978.53
  5. Step 5: Solve for x
    x = 343,068,096,978.53/674,494.86
  6. Step 6: Final answer
    x = 508,629.67

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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.