Home / 735,321.40-1,101,815.70-485,711.80

Finding the Fourth Proportional to 735,321.40, 1,101,815.70 and 485,711.80

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Solution

The fourth proportional to 735,321.40, 1,101,815.70 and 485,711.80 is: 727,797.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,321.40 : 1,101,815.70 = 485,711.80 : x
  2. Step 2: Convert to fraction form
    735,321.40/1,101,815.70 = 485,711.80/x
  3. Step 3: Cross multiply
    735,321.40x = 1,101,815.70 × 485,711.80
  4. Step 4: Simplify right side
    735,321.40x = 535,164,886,915.26
  5. Step 5: Solve for x
    x = 535,164,886,915.26/735,321.40
  6. Step 6: Final answer
    x = 727,797.24

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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.