Home / 878,915.40-1,318,499.44-271,751.07

Finding the Fourth Proportional to 878,915.40, 1,318,499.44 and 271,751.07

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Solution

The fourth proportional to 878,915.40, 1,318,499.44 and 271,751.07 is: 407,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,915.40 : 1,318,499.44 = 271,751.07 : x
  2. Step 2: Convert to fraction form
    878,915.40/1,318,499.44 = 271,751.07/x
  3. Step 3: Cross multiply
    878,915.40x = 1,318,499.44 × 271,751.07
  4. Step 4: Simplify right side
    878,915.40x = 358,303,630,505.29
  5. Step 5: Solve for x
    x = 358,303,630,505.29/878,915.40
  6. Step 6: Final answer
    x = 407,665.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.