Home / 783,605.20-1,177,913.40-728,136.40

Finding the Fourth Proportional to 783,605.20, 1,177,913.40 and 728,136.40

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Solution

The fourth proportional to 783,605.20, 1,177,913.40 and 728,136.40 is: 1,094,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,605.20 : 1,177,913.40 = 728,136.40 : x
  2. Step 2: Convert to fraction form
    783,605.20/1,177,913.40 = 728,136.40/x
  3. Step 3: Cross multiply
    783,605.20x = 1,177,913.40 × 728,136.40
  4. Step 4: Simplify right side
    783,605.20x = 857,681,622,587.76
  5. Step 5: Solve for x
    x = 857,681,622,587.76/783,605.20
  6. Step 6: Final answer
    x = 1,094,532.84

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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.