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Finding the Fourth Proportional to 633,742.56, 874,568.88 and 347,274.72

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Solution

The fourth proportional to 633,742.56, 874,568.88 and 347,274.72 is: 479,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,742.56 : 874,568.88 = 347,274.72 : x
  2. Step 2: Convert to fraction form
    633,742.56/874,568.88 = 347,274.72/x
  3. Step 3: Cross multiply
    633,742.56x = 874,568.88 × 347,274.72
  4. Step 4: Simplify right side
    633,742.56x = 303,715,662,922.71
  5. Step 5: Solve for x
    x = 303,715,662,922.71/633,742.56
  6. Step 6: Final answer
    x = 479,241.39

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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.