Home / 809,740.90-1,214,611.35-748,915.30

Finding the Fourth Proportional to 809,740.90, 1,214,611.35 and 748,915.30

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Solution

The fourth proportional to 809,740.90, 1,214,611.35 and 748,915.30 is: 1,123,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,740.90 : 1,214,611.35 = 748,915.30 : x
  2. Step 2: Convert to fraction form
    809,740.90/1,214,611.35 = 748,915.30/x
  3. Step 3: Cross multiply
    809,740.90x = 1,214,611.35 × 748,915.30
  4. Step 4: Simplify right side
    809,740.90x = 909,641,023,568.66
  5. Step 5: Solve for x
    x = 909,641,023,568.66/809,740.90
  6. Step 6: Final answer
    x = 1,123,372.95

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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.