Home / 916,838.40-1,375,257.60-580,915.20

Finding the Fourth Proportional to 916,838.40, 1,375,257.60 and 580,915.20

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Solution

The fourth proportional to 916,838.40, 1,375,257.60 and 580,915.20 is: 871,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,838.40 : 1,375,257.60 = 580,915.20 : x
  2. Step 2: Convert to fraction form
    916,838.40/1,375,257.60 = 580,915.20/x
  3. Step 3: Cross multiply
    916,838.40x = 1,375,257.60 × 580,915.20
  4. Step 4: Simplify right side
    916,838.40x = 798,908,043,755.52
  5. Step 5: Solve for x
    x = 798,908,043,755.52/916,838.40
  6. Step 6: Final answer
    x = 871,372.80

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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.