Home / 807,511.20-1,211,266.80-508,912.80

Finding the Fourth Proportional to 807,511.20, 1,211,266.80 and 508,912.80

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Solution

The fourth proportional to 807,511.20, 1,211,266.80 and 508,912.80 is: 763,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,511.20 : 1,211,266.80 = 508,912.80 : x
  2. Step 2: Convert to fraction form
    807,511.20/1,211,266.80 = 508,912.80/x
  3. Step 3: Cross multiply
    807,511.20x = 1,211,266.80 × 508,912.80
  4. Step 4: Simplify right side
    807,511.20x = 616,429,178,735.04
  5. Step 5: Solve for x
    x = 616,429,178,735.04/807,511.20
  6. Step 6: Final answer
    x = 763,369.20

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1.5x scale

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.