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Finding the Fourth Proportional to 407,915.58, 562,742.39 and 271,816.76

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Solution

The fourth proportional to 407,915.58, 562,742.39 and 271,816.76 is: 374,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,915.58 : 562,742.39 = 271,816.76 : x
  2. Step 2: Convert to fraction form
    407,915.58/562,742.39 = 271,816.76/x
  3. Step 3: Cross multiply
    407,915.58x = 562,742.39 × 271,816.76
  4. Step 4: Simplify right side
    407,915.58x = 152,962,808,991.66
  5. Step 5: Solve for x
    x = 152,962,808,991.66/407,915.58
  6. Step 6: Final answer
    x = 374,986.43

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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.