Home / 728,915.40-1,093,373.10-658,056.60

Finding the Fourth Proportional to 728,915.40, 1,093,373.10 and 658,056.60

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Solution

The fourth proportional to 728,915.40, 1,093,373.10 and 658,056.60 is: 987,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,915.40 : 1,093,373.10 = 658,056.60 : x
  2. Step 2: Convert to fraction form
    728,915.40/1,093,373.10 = 658,056.60/x
  3. Step 3: Cross multiply
    728,915.40x = 1,093,373.10 × 658,056.60
  4. Step 4: Simplify right side
    728,915.40x = 719,501,384,717.46
  5. Step 5: Solve for x
    x = 719,501,384,717.46/728,915.40
  6. Step 6: Final answer
    x = 987,084.90

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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.